>>53194659I like them, I think in some cases the Pokemon would be better off with an actual evolution but a lot of the time the mega's design is a nice improvement over the prior. I think there is a degree of bias for me though since some of my favourite Pokemon got megas and so perhaps because I like how mega evolutions further developed those Pokemon's designs I wish it would appear on more Pokemon especially those I like that didn't get one.
I think in contrast to Gigantamax forms as well, the Mega Evolutions just generally aim to look cooler, there are quite a few G-Max forms that I think just look goofy. In addition, I'm not that much a fan of Gen VIII Pokemon in general so quite a few of the G-Max Pokemon just aren't appealing to me.
I will admit though that I do wish Gen VI Pokemon had gotten megas in XY, like it'd give me more incentive to use the new Pokemon if I wasn't kneecapping myself from using one of the game's new gimmicks if I chose a fully new-gen team (I know Diancie got a mega but it's a mythical and that was in ORAS anyhow, I'm talking about Pokemon like Chesnaught, Delphox, Greninja, Pyroar, Tyrantrum, Aurorus, etc. getting them).