I don't really care for minivans but the Flex is pretty cool looking and has some nice features as well. Congrats.
I know minivans are great vehicles and people that buy them usually love them...but I don't have kids and have no desire to own one.
I would drive the Flex...especially with AWD. Yeah I know...you can get AWD in minivans too...I still don't want one.
The Mazdaspeed 3's are pretty cool too and I'd take one of them over a minivan as well.