I hate these type of questions. It's like asking me who my favorite group is or what my favorite record is. There are too many favorite songs of the Beatles to just pick one. So I'll list some of my favorites that haven't been mentioned.
You've Got To Hide Your Love Away
Norwegian Wood
Nowhere Man
She's Leaving Home
Got To Get You Into My Life
Because
Yesterday
Eleanor Rigby
I'm Only Sleeping
Fool On The Hill
Hey Jude
I Should Have Known Better
Day Tripper
Ticket To Ride
I could keep going, but I'm afraid I'll list the entire catalog.
You've Got To Hide Your Love Away
Norwegian Wood
Nowhere Man
She's Leaving Home
Got To Get You Into My Life
Because
Yesterday
Eleanor Rigby
I'm Only Sleeping
Fool On The Hill
Hey Jude
I Should Have Known Better
Day Tripper
Ticket To Ride
I could keep going, but I'm afraid I'll list the entire catalog.