I like way too many to list. Specific favorites are Happiness is a Warm Gun, While My Guitar Gently Weeps, Taxman. Yes I'm a huge Harrison fan, but I also love Lennon's songs.
Anyone else get the new Let it Be... Naked cd? It's Let It Be, with one extra song (Don't let me down) from their rooftop concert, and it's all the original studio recordings. No Phil Spector "Wall of Sound" treatment. Personally I think it's great because it's more pure rock for some songs, and all of the songs seem more intimate instead of over-produced.