Ive thought about this question and im not sure how to answer it properly. My answer would end up being an essay length response to a yes or no question, and I won't bore you with it.
What I will say is that i don't think Ole ever will be or, most crucially, needs to be a clone of any of those managers. There is more than one way to be a success and Ferguson wasnt really comparable with any of those three either, nor they with him.
The real question you are asking is can Ole win trophies, and I think he probably can and probably will, but we as a fanbase shouldn't be backing or criticising him based on that. Not yet. It should be entirely around the way that he is helping this club recover from a period where we lost our identity.
I won't speak for everybody, but I know how much I had fallen out of love with this club over the last few years. I wasn't enjoying the football, I didn't like the team and I didn't like our managers. I was missing the odd match for the first time ever. I know of many, many United fans that felt the same way.
Now? I love this team. I like watching us play. I like what we are trying to do with this club and this team now. I cant wait for the next match. This in itself wouldn't be enough for me to blindly support the manager, but I actually also genuinely believe that he will make us better and sign really good players, and our youngsters are in safe hands.
He also seems to be the type of guy that will study his own performance, and be self critical, and smart enough to know how to analyse that correctly and make the right changes, so its just guessing to try and predict what his ceiling is as a manager. He might already have reached it, but i personally doubt that. Time will tell.....