st bernardus wit
sierra nevada kellerweis (so good which is amazing considering how horrible their now discontinued Wheat beerwas)
flying dog in-heat wheat (very nice american representation of a classic german hefe)
bells oberon (on of the best american wheat beers)
weihestephaner hefeweise and kristal weizen
unibroue blanche de chambly
southampton double white
blanche de bruxelles
franziskaner dunkel hefeweizen
kapuziner scharze wheat beer
i can definitely relate. franziskaner was the german hefe that got me into german hefes. in the years since it has lost a bit of its lusters and its oomph, but it's still a good hefe. i prefer their dunkel a wee bit more than their standard at this point.
hey now, i can't remember every wheat beer i've had ^_-
speaking of aventinus, might as well give props to the schneider-sohn eisbock also. dif beer, i know, but still damn good and the best eisbock i've had to date.
If you can get your hands on Tree Brewing Co.'s Hefeweizen wherever you live, you are in for a treat (Kelowna, BC, Canada). It has won numerous awards in BC and Canada in general, including the gold medal for wheat beer at the 2008 Canadian Brewing Awards. It's spot on - very reminiscent of the Bavarian original - lots of banana and cloves - excellent stuff.
Besides that I'd have to agree with a few of you on a Bavarian classic - Franziskaner!!! The best in my books!
Can any of you find Franziskaner where you live (that is if you don't live in Europe... )