I played the hell outta both series too and they arnt alike, now it sounds like your comparing controller set up being similar.breh, one is a very linear game and the other is a open world sandbox, i understand they're different. im talking strictly about controls/platforming/and combat, prove to me they aren't similar mechanics. i've played the hell out of both series and if you know how to play 1, you're probably going to know how to play the other.
The controller set up for most games are similar tho