Ok cuz I heard AT&T was terrible, and I figured why not go with T-Mobile. Now I've got doubts again haha!

I'm headed to Lafayette pretty close to Baton actually! 'bout 50 miles:)

Edit: kinda off topic but since you've lived there can you tell me what the people are like? Where I come from (holland) people are extremely liberal, and I think it'll take some time to adapt. The only people down there I really know is my family ;)

No. I guess it's all relative However if AT&T is terrible then tmobile is probably terrible X 2. Especially when it comes to indoor coverage. Tmobile primarily usesd the 1900 band which does not penetrate buildings well. 3G is another story. If you want 3G don't touch tmobile. Heck! tmobile probably carries may be 2 or 3 3G phones at the moment. OTOH, you will be hard pressed to find a non-3G phone sold by AT&T. That there should give you enough to go with.

Louisiana is a nice place. I am not from there either. I just went to school down there and worked there for 1 year after college. In general, I did not have any problems living there. It's much more laid back though and is quite affordable.

AT&T is certainly terrible in San Diego. I had better, more consistent voice service on T-Mobile. (T-Mobile prepaid doesn't really do data so I couldn't test data speeds.)

PCWorld recently published an article comparing 3G performance of US cellcos, which came to the conclusion that AT&T's network is superior (see table below). However before watching for performance, check out which operator actually covers your area with 3G especially indoors or wherever you intend to go online.

http://images.pcworld.com//news/grap...1_original.gif

thanks man, thanks all of you! I've had great support from you guys in making my decision.
In fact when I look on the att's coverage map, the signal quality is supposed to be good indoors, as it's colored red (best coverage) !
so I guess I'm going with AT&T! But what phone haha? There's so many and I'd like something similar to my htc Hero:)

Get the Nexus One or if you want a hardware keyboard the Motorola Milestone as soon as these get available as UMTS 850/1900-compatible versions. Both run Android 2.x and have a screen resolution of 854x480 pixels, which you'll never want to miss after seeing it once.

yeah the nexus one I don't like the design, nor do I like the droid's design, plus their interface is ugly. But I guess we got lot's more phones coming!