Went through basic with the M 14. I have owned 7 M1As. Love the M 14 types.
The AR 10 is much more versatil. Quality parts fairly easy to get. Not so true for M1A thesae days. Talking about GI parts. Scarse and expen$ive.
Owned 7 AR 10s and still have 2. Armalite.
Extremely accurate, very reliable.