My personal best would've been also royal flush in pokerstars, if i didn't throw it away preflop. I remember i had QJ h, but i decided do not play this hand, because like 3 people went all in before me. So after i folded i saw flop was AKT h. I was like OK, maybe was bad fold lol, but wanted to stay in tournament. After that iv'e had straight flush'es couple of times.
my best poker hand has been royal flush several times