Smart Phone with best reception and call quality?

I've got a Treo 650 now and will be switching over to SERO shortly and picking up a new phone. I really like the idea of a smart phone, but I find my self in areas of low coverage more than I'd like (have a bar, try to make a phone call, and signal magically drops sort of thing).

I'm looking at going with either the 755p or the Mogul. Anyone know how the reception and call quality compare among the 650, 755p, and Mogul? I haven't heard great things about the Mogul as a phone and I've heard the 755p is slightly better as a phone than the 650 is but I don't know that I've actually talked with anyone who's actually used more than one of the three for any length of time.

I guess my other alternative is to go with a phone with analog coverage and make due with the phone tools and Google apps, but I'd really rather stick with an all-in-one device.

**EDIT** I'm not concerned too much about the OS differences, just the reception and call quality. I like the Palm OS better and the Mogul form factor better, so the deciding factor really is the reception and call quality.

 

Huh, well... thanks. I appreciate the feedback. Reception is probably a little bigger deal so that is helpful.

 

Budney, thanks for the info, I would agree stability is important. Your lists are in descending from best to worst for each category?

 

Thanks for all the feedback. At this point I'm leaning toward the Mogul. Anyone have any warnings against it other than the so-so call quality?