Ahaha, I've had to reset many a time. I recall I had a few badass characters and then would have to reset due to a character dying. In FE6, it was sooo bad. Roy kept dying because every time I leveled, it'd level everything BUT his DEF and SPD stat and so...well...he died. A lot. xDDD Epic fail. But then I was playing sacred stones and I was comparing my two files (Ephraim and Eirika's sides) and it turned (quite ironically) that my Joshua was the same in both sides. Maxed out speed and strength and had high def to boot... I also recall having a seriously badass L'Arachel. xDDD;;;
Ah, I don't miss resetting all the time, but I do miss playing them. Perhaps I shall dust off my old cartridges and ROMS and play again sometime.