frieza tier 1? ehhh, broly is better in nearly every way though. Both have similar stats except frieza is

non-compatible with any teams other then yellow based.

Trunks is debatable but I can't let it slide. You didnt include SSJ Vegeta in the tier list. Ginyu is underrated, he could definitely be tier 3. Paikuhan like frieza has no compatibility except frieza is better in every way making Paikuhan useless (tier 4 worthy)

Gohan and trunks are the most similar characters but I think that gohan has the better main ability putting him a tier higher

VEGETA TIER 2??? Nope nope nope, highest possible blast damage combined with being the only sparking counter to piccolo single highhandedly places him in tier 1.