There's no point comparing the two.
Starcraft 2 launched as a major title made by a dedicated team, with full support and lots of content updates, including two big expansion packs, meanwhile Reforged is a failed attempt at remastering an old game by a smaller team, with content updates likely limited to minor tweaks and restoring cut features over the next couple of years.
The first will be remembered as one of the best Blizzard games in history, the latter... well, as one of their worst.