The only thing that makes me laugh more than developers claiming their games won't have an optimal skill path, is people actually believing it.
At this point D3 is a different game than D2. TL2 just sounds like a shittier version of D2.
Honestly, I'd just rather not compare them. I know it's a futile request, similar genres and all that. But, really, they're different games. The only thing I care about is how much better TL2 is than TL1.
Some expect the game to get better at later levels and with nightmare which requires a lot of time get to and then you realize it's not really any better and the itemisation still sucks ass and you either use a lot of time or RMAH.
The RMAH isn't required at all and most the best gear is probably found on the Gold AH, not the RMAH.
Granted, we can argue about how well an itemization difficulty progression path (rather than the "I want to kill shit faster" itemization path) worked for a loot game. They're shifting towards the latter but I do wonder just how better received D3 would've been with that at the start rather than now (well, soon).