Signal quality - Samsung u470 v. LG enV

Greetings,

I am interested the signal quality, signal availability, and call quality of
the two phones, as i tend to be on the fringe of cell phone coverage often.
Does anyone have experience or opinions or review links they are willing to
share?

Thanks in advance for any information!

Also, if you have opinions about features between the two phone, would be
glad to hear that as well.