Leafeon, because I always wanted a grass typed Eeveelution, ever since Pokemon Blue (and thankfully, since Sword/Shield it evolves through the leaf stone, as it always should have)
Togekiss, because I never liked Togetic all that much and it was, to me, a much improved final evolution. It's also very cute
Mismagius because it looks awesome and gave Misdreavus an evolution
Roserade because it upgraded Reselia quite a bit and I like the "masked hero" vibe it has
And Yanmega looks just so much better and badass than Yanma
I would like Electivire, because it looks so much better than Electabuzz, but it's a trade evolution, and I hate those.