While I disagree with you on Gen V being overrated and personally say it's underrated, (Learned to love alot of the Pokemon myself and only thing it lacked to me was the region.) I can definitely agree that Gen I is overrated.
Don't get me wrong, I love gen 1 and all the generations. I grew up with gen 1, it was the generation that got me into Pokemon. Red was the first game I played. Though now when I play through it ,it doesn't seem the same to me. Of course it's nostalgic, but Kanto is sort of boring after playing through the region in 6 games. Plus there's tons of glitches and ugly sprites.