I went through Beerus and Kid Buu, as well. Beerus' moveset sucks against Super Dashes - you just have 2H and 5H from farther away. Also, his level 3 super can grab someone superdashing toward you - ayy! Beerus' level 1 is pretty solid, too. He can jab Super Dashes as well, but in the air it's hard to do consistently - much harder than Frieza. his j.2H and all of his orb kicks can hit a superdash, but the timing is coincidental, I think.
Kid Buu...I am starting to see why so many scrubs are angry about this character. Everything in his moveset beats Super Dashes. Jab beats it, 5M beats it (on accident, all the time), 5H beats it, 2H beats it, ALL of his supers beat it, he can beam or food zap the Super Dash, and you can even command grab the Super Dash at its lowest approach into a full combo if you are willing to burn a bar. Kid Buu has so many options against Super Dashes you are better off not using them at all.
Oh god, this is me all the goddamn time. Even in training mode. Whoever made that decision needs a slap in the face. I would love an option to disable that.