The 6262 is based off of the Peavey 5150, so you can't really go wrong with that choice.
It is, however, a whopping 120 watts as well as the 333xl, and you don't really need more than a 50 watt, but that doesn't mean you shouldn't get it.
I tried it out close to about 6 months ago, and so I don't remember too much of its sound, and I'm not that picky, all a remember of its sound is "Oh cool, it goes CHUGGA CHUGGA CHUGGA" and that you can put lots of reverb on it
And I'm also not familiar at all with the 333xl, so I can't say anything about it, apart from that it has another channel.
Your best bet would just googling sound samples for both of the amps, and asking some of the more helpful jemsite members :P