I am using 3.3rc3 for some hs now and did not notice any stability problems. ndiswrapper did not compile but nvidia+fglrx work. Since rc2 the kernel 3.3 booted on my netbook as well (3.2 only works since 3.2.3+ on the same netbook, most likely the fix was backported). I can not tell what is better compared to 3.2 however, did not notice any difference.