My personal top 5 from George:
Long, Long, Long
I Need You (as a kid, I recall being indifferent on first few listens, but George's tone pedal won me over)
Think for Yourself
If I Needed Someone
Something
HM: It' Only a Northern Song/I Me Mine
I also like some of George's early covers. "Roll Over Beethoven" was a good song choice for him. Even going back to the mostly dismal Decca auditions, I thought his songs were on par with Paul's (Lennon's songs were bland). On the Hamburg recordings, George does an awesome up-tempo cover of Ain't Nothin' Shakin', whereas the BBC studio version sounds neutered by comparison.
"If I Needed Someone" is responsible for my biggest case of buyer's remorse. I became obsessed with Paul's Hofner at a young age and was intent on buying a Beatle bass when I could afford it. There were no major guitar dealers in my immediate area, so I couldn't even decompress by playing one in-store. Eventually, my parents found a Hofner copy at a local shop (well before Hofner introduced its then more affordable "contemporary" model) and surprised me with it for Christmas. The no-name violin bass was enough to satisfy my appetite.
Fast forward some years later to me having (maybe) enough disposable income to risk overspending on the real thing. I was online shopping for reputable dealers and deciding between a Hofner V62 model (closest replica to Paul's) or a '63 (no longer in production). "If I Needed Someone" was playing in the background. Hearing the jangle of George's 12-string Rickenbacker, I decided to watch a few Youtube videos of amateur guitarists strumming their own 12-strings. About a half hour later, I had ordered my own on impulse. That was thirteen years ago. My Rickenbacker is still in its case under my bed. I've taken it out about twenty times since purchasing and last opened the case about 8 years ago. The Rick 12 has a learning curve, especially for a 12-string novice with little patience. The strings are spaced closer together than other 12-string brands. You also need to be handy with a pick. I'm not, and refuse to learn. I'm not a "throw it on ebay" person, so I'm stuck with it. At least Rickenbackers don't depreciate in value, but mine may no longer be as near-mint due to gross neglect.
I'm much more careful with my spending these days. My Hofner dream is dead, but I'm happy with my violin copy bass and even prefer it to an original, since it was a gift from my parents. Present-day prices for genuine Hofners are astronomical, so they're an easy pass.