Quite frankly i feel neuer is very good but slightly overrated bayern conceded the the least goals i think, in europe that is, certainly in the bundesliga and all that though credit is to be given to neuer being the keeper and all, but most of that falls on the defenders who were exceptional last season, dante, lahm,alaba, boateng they were all amazing and definitely one of the most instrumental factors to bayern success, its just like barcelona and this coming from me being a barcelona fan, victor valdes our current keeper well how do i put it emm isn't the "best of keepers" but in years like 2009 and 2011 were barca was unstoppable, it was their defense especially in 2009 the back line of pique and puyol, that when puyol was still not old and was still at his peak barca where almost unstoppable and all that praise majority of it though should fall unto the defenders, i think hart had a miserable last season and was below par of the standards expected from him, no doubt the odds are that neur would be in the world xi and deservedly so for all the accolades and trophy his team won but when it comes to ones individual performance , cech, de gea, and weindefeller would give him a run for his money. I also think casillas is not the casillas of euro 2012 his injuries along with his time on the bench as made him rusty as one could clearly see in the confederations cup[the penalty shoot out against italy].Honestly, I don't think there's someone that actually distinguishes itself as the Top Goalkeeper actually. You may make a Top 5 or Top 10; but imo, the first place is up for grabs by many.
In 2012, I'd probably have Casillas as No.1; after a stunning season and Euro's win. And I would have Cech as No.2; given his heroics in Chelsea's CL win.
But right now, in 2013, I can't say who's Number 1. Neuer is great but he got too little job at Bayern, to be tested in extremes like many goalkeepers do. Weindenfeiller got an awesome season in early 2013; probably the best till now. De Gea, Muslera & Courtois have made tremendous progress. Diego Lopez & Lloris impressed for most part of the season. Cech has been mostly stable, though a few mistakes. Hart & Casillas have had a declining season; while Buffon is on a decline due to age.
Neuer is young, and with Pep's tactics, maybe he'll now be more of a keyman for Bayern. With his talent, poise and skills, this guy got everything to be the Best Goalkeeper undoubtedly. I can easily see De Gea/Courtois/Muslera fight for that spot, in near-coming years. I love Cech personally - he got all attributes of a world-class goalkeeper and actually is good-great in 90% of Chelsea, and he's maintained that consistency for years. And Lloris is great. If Dortmund remain a top dog in European echelon in coming years, expect Weindenfeiller. Tim Krul, Begovic & Diego Lopez impressed me in many matches too. Perhaps, they'll be in Top 10 someday; certainly got the potential. Buffon/Casillas are hanging with their experience; for how many years, I can't say.
Hart is best English goalkeeper over more than a decade, but he's still overrated. it's not about his skills - it's about his perception and intellect skill. Goalkeeping requires lots of thinking, studying, research, focus, concentration skills; along with technical abilities. In short, Hart doesn't make full use of his talent. You can easily see a different commanding body posture in Cech/Casillas/Neuer or a different imposing personality in Buffon/Lloris/Weindenfeiller - this is actually highly important factor for a goalkeeper. Hart doesn't have that, yet. And it isn't only Hart, Abbiati/Sczeny/Handanovic/Stekeelenburg ect... can all be among the best, if they were more consistent and make better use of their gained experience. It's not that they lack skills or talent. De Gea/Courtois/Muslera's learning graph rate is better than Hart - in fact, I'd rate most of them ahead of Hart already.