I'm know i'm not doing myself any favours but even so i think i have a point. I do think alot of Ronaldos lesser performances, particularly towards the end of the season were masked by goals. I remember alot of ratings being "alright, scored again" etc.
To answer your question i wouldn't say he is out of the running, he is behind many players already though and would need to really come alive in the champions league and put together a good run of world class performances. He hasn't managed one yet this season but he is a world class player so if he pulls it together he'd have a chance of course.
The best thing for Ronaldo is that he can only improve this season. He hasn't managed a champions league goal so he'd need to be banging them in from now on. Wont be easy but he can do it, personally i dont think he will because he has had games where it looked like he was getting his form back but then he goes and plays another stinker like against Derby.
The first thing people consider is the Champions League. Before anything else, this is the stage where all the best players in the world get to meet and remove doubt about how good they are or whether they can do 'it' against opposition classed as peers. In this regard, I don't think anything has been decided for any award this season and with the return of the CL next week, it's pretty much a clean slate for all involved - including Messi.
La Liga is poor this season, and has been for the last two and is not the barometer for where Messi and his game is at. His performance in the Liga have been outstanding, but in the grand scheme of things, they are a secondary concern.
Kaka won the WPOTY (rightly or wrongly) for his performances in the CL whilst being pretty mundane in the league and it's not out of the question that the same thing could happen again this season if Ronaldo or anybody else turns it on in the upcoming fixtures.
You also seem to give no credence to the fact Ronaldo's role in the team this season has been greatly modified from the free role he had last season. That plays a big part in why he has a staccato pace to him this season compared to last where he could instinctively go where he wanted when he wanted.
To me, your measure of Messi appears to be aesthetic - the lad is a joy to watch and as such you take great delight from what he can do when he plays, but in turn you're dismissing a lot of what makes Ronaldo the player he is. His game, for you, is not aesthetically pleasing and you suggest that without his goals his performance level wouldn't have been 'masked' so readily last term.
Well, I don't agree with that at all. He exhibited the greatest movement in football last season, which is a talent all by itself, his awareness and instinct of where to go and where to be to capitalise on anything or make a goal from where there was none, is also a talent; he would have had a lot more assists if Rooney and Tevez weren't so profligate in front of goal and, ultimately, he showed that even without the ability to take on the 3's and 4's that Messi can, that he, as footballer and a talent, is incredibly gifted - when free to do as he pleases.
When restricted to the role he's got now, a lot of what made him the player he was last season is taken away. That's not to say he cannot get 'it' back if the manager again 'sets him free' in the CL.
Messi, as has been said before, is a massive benefactor in an offensively brilliant team. Ronaldo is in a team that is currently not the smooth attacking animal it can be - it plays its part in how any individual will look. Neither of these players are Maradona or Ronaldo, and they need their teams to function well to exhibit what they do. If Manchester United hit the gears they are capable of in the league and in Europe the battle between these two will be a lot closer than I think you believe it can be.
Messi's individual and fundamental quality of dribbling is light years above Ronaldo's, but his overall game and its effectiveness is definitely not - at their best, these two are still par even until one or other them does something amazing on the greater stages presented - that's what ultimately seperated Maradona from Platini and Zico, and what will probably do the same between these two. I don't even reckon it would need to be a world cup. An incredible series of performances in the CL would do it, I reckon.