Personally I'm a fan of both, although I'm more versed in real robo having watched a lot of gundam and some macross movies. I'd say on the fun scale, super robot is all about that goofiness that defines anime while real robo has some good stories to tell and mechanical designs that wow you.
If Gundams are a real robot I'm not sure what a super robot is.
https://tvtropes.org/pmwiki/pmwiki.php/Main/SuperRobotGenre <<<--- a good primer on the series that cover it. If you wanted to get into it Go Nagai was the father of the genre.
I'd have to go with real robots then, I was really into the early Mech Warrior games.
Mazinger was one of my earliest exposures to mecha, and rocket punches (and rocket boobs) were awesome all the way back then.