Yea also, as I pointed out in another thread (and also as represented by the ICC rankings), Tendulkar had a good peak but (without 'standardising' averages or anything), Pointing's peak was a good whole level above that. I don't recall Lara's ICC numbers but I'm guessing he also had this gear/peak that was just higher. Apart from a mid career dip (injury?) and end of career slump, overall Sachin was far, far more consistent as a batsman though and more likely to put up good numbers - just not great 'daddy hundreds' (200+ anyway - he has very few of those relatively speaking for his career. I think he has quite a few 150+ though). Also, Sachin didn't have any holes against any team - unless you count a 40+ average vs South Africa and Pakistan as holes.
Smith's peak has surpassed Ponting's peak, which was already quite impressive. What's interesting is that Kohli's peak seems to be up there in that kind of region, a level above Sachin's in fact (7 double hundreds in the last 40 tests) but possibly a shade below Smith's peak, so perhaps level with Ponting's peak.
It's hard to say how they'll end their career - will it be huge slumps, a gradual decline, a final swansong? It's a privilege to watch though.
For an Indian, I didn't think we'd see someone anywhere near as good as Sachin, probably for at least a decade or so, probably more - but he came right at the end of Sachin's career. Took him a while to get going in tests certainly.
The others are clearly a drop down from their counterparts though Pujara is a good batsman (Pujara/Rahane vs Dravid/Laxman).