Chaco

I've legit created over 15 Garry's Mod communities over the past 3 years (all but 13 were successful ?) but anyways i've also been apart of a few fivem development teams as well. I'd have to go with Garry's Mod at the moment because like all the memories I get while playing that game is crazy. Yes, FiveM is actually really fun but with how much time I've spent on Garry's Mod, I couldn't just turn my back on the game like that lmfao

I've used both many times in the past. Based off my experience, IPS is best if you want more of a free range of opportunities and customization options.