Ah shit you're right. I blame it on the weekend.
Still, I can count the songs I know from Weezer on one hand as well.
Yeah Wheatus was a 1hw while Weezer has a shockingly large list of hits.
Everyone knows Buddy Holly and Say It Ain't So from the Blue Album. Undone (The Sweater Song) and My Name is Jonas from that same album were also pretty big. Other albums have Island in the Sun, Hash Pipe, Beverly Hills, Pork and Beans, Happy Hour, Perfect Situation, Thank God for Girls, Feels Like Summer. Then there's their cover of Africa which might be their most popular song since the Blue Album era.
But in terms of quality? Haha yeah. Most inconsistent band ever. They've put out some stinkers. Also popular!=good. Beverly Hills radio success was a curse to Weezer fans.
**Clarification: all of this is based on US numbers. I cannot speak to their popularity elsewhere.