That's not overrating that's faith, justified or otherwise. Just last year Ozil was playing in the u21s and he's soon to be 22, Rodwell's only just turned 19 and chances are will step into the national first team at an earlier age than Ozil did(and Hamsik, FWIW). That's not to say that he's better than Ozil, and I do understand the argument about proven quality, but it's a bit ott to call it 'ridiculous'. He's made 26 league starts whereas at the same age Ozil had made 19 starts in an easier league. Again, not saying he's more promising but there's two sides to every coin and he's played a very decent number of games now at a high level for people to get a good judgement on him - there's no need to criticise those opinions, even if you disagree.
On Moyes, he's the only British manager I'd be quite happy to have. He doesn't play the prettiest football but it's gradually improved as he's progressed along with the club, with more technical players being added every year (Bilyaletdinov, Donovan, Saha, Arteta, Pienaar all signed in consecutive seasons and all a while away from the likes of MON's signings, for example) to add to the strong spine of the club.
He's always been very willing to give youth a chance - although credit should be given to Everton's academy to allow him - and he's always been able to find players who have the right mentality to stay at the club long-term, be it through signings English players, PL-proven players, or just people from slightly more obscure places like Arteta/Fellaini/Yobo who've shown leadership qualities and passion for the club.
That mirrors a lot of what Sir Alex has done, with the only blot on his copy book being the fact that when he did sneak into the CL he couldn't push through to the groups at least, but that was partly down to a very tough draw to the CL finalists that year, and you can't criticise him for not making a mark at the top level because Everton have no right to be there, he'd have to do exceptionally well to get them in.
As for Rodwell, I think the thing that's most impressive about him is less to do with what assets he has that are exceptional, and more to do with what flaws he
doesn't have that are almost a given for players of his age - he plays with no fear, an elegant composure and assuredness that is so rare at his age in any position, never mind a centre mid. Even further than that it's the fact that he'd played as a centre back for the vast majority of his youth career
[1], and yet he's still brought that elegance and calm into what is - in my view - easily the most difficult position for a young player. It's not like he's just played as a deep-lying midfielder where he's not under as much pressure and he has plenty of space to just play the simple ball, he's played as a box-to-box midfielder and on a couple of occasions as an attacking midfielder right in the thick of things...and he's just never looked fazed. Add to that his rate of development(or rate of settling in) over the last couple of years which led to things like David Moyes saying he wasn't even aware Rodwell could shoot as well as he can until he seen it in the flesh in the first team as well as commenting on his willingness to learn and his all round mentality
[2], and then you add in the fact he's a very clean tackler, a very capable passer of the ball long and short, very comfortable carrying the ball, aerially impressive, very two-footed, can shoot from range...and what can you say? All of this makes for the perfect package really.
Comparing him to Rooney is unfair on two points, I feel, with the first being that it's considerably easier to shine as an attacker as a young player because you can play almost entirely on instinct - flair, pace and natural skill are enough to allow you to play in an attacking position(especially on the wing) in the first team because you're looking for the player to make an impact, not for the player to make the team flow and organise it - whereas in midfield you can't take the same risk with young players, a simple concentration lapse from a young defensive midfielder in the kind of areas they play can be catastrophic and lead directly to a goal and you have to be sure you can rely on them, you have to be sure they can fit in a certain style of play right away rather than slowly let them adapt to it. That and Rooney's one of the most talented players in the history of England, and was ready for the top level at a shockingly young age - even compared to the majority of players that are deemed as some of the best players of their decades - and isn't really how you should be expecting any player to develop, even if they are destined to be exceptional players at some point.
I personally think he'll end up a defensive midfielder in the same vein as someone like Yaya Toure or Alex Song, who both started their careers as centre backs, and both have a lot more to their game than simply destroying attacks so if born a decade earlier could easily have played as box-to-box midfielders, but judging by the lack of players of this ilk we have and the increasing trend of 3-man midfields I don't think there's a lot of room for such a broad style of play - although he could easily play much like Essien in playing mainly as a holding midfielder with the opportunity to switch positions when needed. If the tactic of dropping your holding midfielder in between the two centre backs to stretch the play ever spreads further than simply Barcelona and Spain, he'd be ideal for doing so because of his composure and versatility of play.
[1] - "I've always played defence because I've always been the biggest at the younger ages, so it was only natural for me to play there," Rodwell continued.
[2] - “He is a very good player with really good composure, I just didn’t know he was such a good shooter,” said the Everton manager. “I knew he was a good striker of the ball but his shooting tonight came as a bit of a surprise to me. " and “[he is] a very good boy who wants to improve, has a lot of potential and is very conscientious”