My opinion is to get an M6. M2's and M3's are very nice too, but I really like having a built in meter, plus they are newer. The quality of all these cameras is very high, and they all have their fans. If a meter is not important to you, an M3 is great with 50mm and longer lenses because of the higher magniication viewfinder. Then of course M2's have nice and simple framelines. You really can't go wrong with any of them they are all wonderful cameras. Has this been any help? I have an M2 and an M6 and I use the M6 the most.