Batboard

I have a choice of 2 antenna's for a XPR 8300 UHF Trbo RPT.
The antenna will be 280 feet on a building.
Which antenna would be best ?

Comet CA-712EFC
Comet CA-F72GF

I know there are much better antenna's available , but these are my 2 choices.

Thanks
Max

There are more/better reviews on the 712EFC than the 72GF.

Thanks Bill, just curious because the CA-712EFC is a collinear and wasn't sure if that would be better.