different brands work better on some decals vs others ,I wouldn't say any is "better".they are all usefull and it doesnt hurt to have more than one brand
solvaset used to be quite strong ( it was formulated in the "olden days" when decals were thick and tough) ,recently, they changed the formula from strong to tame. more in line with todays thinner and much better decals.
Champs was another brand from the old days that was really strong.no longer available
microscale products seem to be the most effective over the broadest range of decals.
If you want a strong formula that will melt any decal into submission (too strong in some cases) try ,Daco products Decal setting-strong formula