Help Preferred network type?

[goat-head]

In the "testing" menu for Samsung Fascinate, what should be checked for generalized/optimal preferred network type? cdma, gsm, evdo, wcdma, etc... I'm just curious?
Also, is there a different number to call for checkin? It's *#*#checkin#*#* for my Ally!
Anyone able to answer this?? Any ideas or advice very much appreciated! C'mon, I know someone has the answer to this seemingly simple inquiry?Thanks....

 

[azuma73]

I too would like to get the 411 on this?
Thanks!!!

 

[goat-head]

I'm sure some of you guys/girls can give me a definitive answer to this?
Please and Thank you very much!!!!