Kinda hard to say, there have been plenty of old RPG's in the past I thought were the best thing since sliced bread when I was younger, but if I played them today I'd be horrified. (Lands of Lore series for example, loved them then, can't play 'em today)

But the truly cringe worthy titles right off the bat for me have been:

Dragon Age II

Legends of Dawn

the reworked JRPG Ancient Lands of Y's book I & II (the originals were quite good and not your standard fair JRPG, so they decided they needed to remaster it and make them your standard fair JRPG)

Those 3 I think all tie for worst for me.

I pledged and all I got was this lousy awesome game!