Uh. Prolly gonna get flamed for this.
Excel Saga. There was absolutely nothing I liked at all about Excel Saga. But I always have fond memories of it.
Voltron. As a child I was mesmerized. Looking back on it now, and after watching season one, I absolutely can't stand the site of it. It's so bad. I'm only holding onto it for nostalgic purposes, but I still like it.
Last but not least...
Toaru Majutsu No Index. I keep watching it and I keep holding out cause specific cast members, but overall I honestly hate it, haha. Railgun is ok. But index is not a preferred show.
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All I see is a pubescent boy who keeps punching women in the face.