I think that this all depends on the point of view people see it in.
Hardcore Weezerites might agree, and might even say that Weezer is better
Other fans, who only like a few Weezer songs, but aren't that into them, might say that Weezer could never compare to The Beatles.
I think that while Weezer may not yet be at that point, they have evolved throughout their carrer and have other similarities with The Beatles.
Rivers and Matt are the Lennon and McCartney of the 90's. Period.
Beatles are the most overrated band of all time.