Gator boards are not more advanced then Hyperlites line..if anything its even or HL has the edge..Gators are great boards but they have a pretty staright forward line of boards..
Some are so close to HL bottom designs you would think you were riding HL
good choices from what you listed would be
Hyperlite ERA 135/140
Hyperlite Premier 136
Gator Gonzales 138(really a 136)
BS Billy Mckee 141
all these boards are pretty similar ride so pick them up ,look at them,demo if you can and pick the one YOU like the most..