I want to buy one for my wife.

i would recommend the Lexus, the others are fine cars but Ithink the Lexus has the edge. I envy your wife!.

The Infiniti FX35 is the ONLY vehicle that has any soul of the 3. It would be my choice - I promise that opinion isn't biased!

The only car between those 3 that can fit 7 people is the Acura. The Lexus is hella ugly and small. The FX is more like a sporty cool SUV. But overall the MDX is best choice.

I have been in all 3 of these cars. Out of the three I would go for the 350. It is reliable, good looking, has a nice ride, and has a nice interior. But if price is the issue I would get the Infiinti FX35. The Acura MDX has a very uncomfortable back seat and I just dont like it.

They're all superb vehicles and you would not go wrong with either one of them. It all depends on what you think your wife would like. They each have a specific style and all of them are great in their own ways. If its not a surprise then have your wife test drive them. If it is then I'd say the Lexus might work best. I know my mother has been wanting an RX for years even though she currently has a 2004 Acura MDX, and it seems like most females would prefer the Lexus, at least from what I see. I would personally prefer the Infiniti FX45 just because I'm an Infiniti fan and I have a 2000 Infiniti I30. Once again the cars are all great it really is up to what your wife specifically likes.

I had an FX35 for 4 years, and it was great. The Lexus is nice but handles like a Buick. If I had to do it again, I would buy the Acura. Check out the new issue of Car & Driver. The Acura topped all other competitors.

Good Luck
(Oh, and I bought a new HOnda CRV this time)

the infiniti fx35 its got a great look to it and roomie plus nothing is better than infiniti