Always love a good Mega Man writeup. It's no secret that MM2 is my top and although MM5 is in my bottom half of the NES saga, I would hesitate to say it's one of the "worst" of the series. It's more like it's among the least best. It def has some hits, Gravity Man's level is some of my favorites across the 6 titles.
I still love MM5 more than probably 85% of the entire NES library. And it's better than any of the X entries which are still amazing games (X4 being my particular favorite of that series).
I'm probably due for a replay of 5. That'll be my next playthrough on the Nintendo.
Obligatory MM ranking: 2>3>1>6>5>4