which is more competitive

Mario Party has made me angrier, rage hard, and tilt more than any other game in existence. It's one of the best games at screwing you over, and laughs at you for being the victim of all of it. If you play against bots on anything higher than easy where they bend over backwards to allow you to win, RNGesus will ensure that you pretty much never win.

Also, if it's played with 4 people it will go out of its way to instill rage in each and every one of the people playing, causing those ahead to gloat at everyone else purely out of the fact that they've been probably getting dicked around all game. Until they get a magic lamp themselves and instantly are able to get a star, not to mention all the other RNG ways Mario Party has to promote trash-talk, raging and gloating.

League just makes me laugh when I guess I should be raging. I had an Annie two-shot me recently by dropping Tibbers on me and doing one of her spells, deleting me so fast that it would make Veigar blush. I died so quickly it took me a couple seconds to process what happened, and then I just burst out laughing. Everyone else seems to take it a lot more seriously than I do, though.

Mario Party is easily the more competitive game, but League beats it on interesting gameplay, proper execution of mechanics and under-reliance on RNG, which is why I suppose there's an LCS and not an MCS.

Uhmmmmmm.....Damn tough question. Id give it to Mario because of nostalgia

depends dynamic que then mario party, solo que or 5's as a team then league.

Mario party for all the reasons cheese listed