I'm here to put an end to all this quarrel. I've played both tanks (my friend let me play on his account) and all i have to say is, When I'm in my friends IS, I get hunted down and killed by every T29 in the game. I'M NOT KIDDING. And to think what fun i was having in my T29... Anyways, all i have to say is, the 122mm is inaccurate, so its harder to aim and you basically have to hope to dear god you hit. While in the T29, its shoot, hit, repeat till kill. Russians make giant, but inaccurate guns, while Americans go with medium, accurate rifles.
If you are a sniper, or face hugger play style, go for the T29. If you are a medium range brawler, I suggest the IS. Considering that the T29 is more versatile, i would HIGHLY suggest it.
[Add-in] Bad thing is The t32 is under gunned and under armored (first turret). =(
Edited by s2117774, Jul 26 2012 - 04:51.