This is a tricky question. I agree all the LTE phones are having issues right now. Doesnt help that Verizon's LTE service has been flaky lately. Since you mention the area you live in is limited in cell towers, I assume the reception in that area isnt too good? If thats the case...I would lean towards the RAZR. If for nothing else history and current affairs with Moto, Samsung and reception.
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Even with that said...I think the LTE chip in the G Nex will offer faster speeds. Read recently that the G Nex and Rezound use Cat 3 technology while the Bionic and RAZR use Cat 2. Article said Cat 3 offers higher speeds. Question is if it cant really hold or get a signal where you live...what good is it?
Only real way to tell is get both and use them.