Sukhoi vs Mikoyan Gurevich: which was the better design bureau?

for most of the cold war, these two were the ones mostly in charge with tactical aviation while Tupolev and Ilyushin specializing in their own areas.
sometimes Tsagi would give them the same basic design and their designs or requirements sometimes were the same, overlapped, or completely different.

which dod you think produced the better designs through out its history?