Two G-24's about 150 amp hours combined
Two GC-2's about 220 amp hours combined
Price, not much different,
Ability to recover from an "OPPS" The GC-2's are (Golf Car batteries) are Deep Cycle.. The G-24's either strting or Marine Deep cycle (mostly starting) and thus the GC-2's do a much better job of surviving a major "OH S!!!!! type deep discharge. Still, don't recommend it. But do recommend them
Major differnce, they are taller.. so make sure you have the room for them.
Home is where I park it!