I must say I am shocked not to see every comment say that the AR-15 is the better choice. I also have an M1 and I reload for it. Both of my sons love it, and I have a hard time not having my wife shoot up all the ammunition when we go to the range. I must agree with you that I would take this as my only rifle. I guess only those that don't own an M1 will argue that the AR-15 or AK is the obvious choice for only one rifle. I definitely lean toward the 30 Carbine myself. If not I would have to take the AR-15.