Beatles.Come Together

I have played this song of many beatles since 1979,& on chordie saw 2 versions.Version 2 is best but misses one chord change,& version 1 doesn't sound right on starting chord.V-1 has verse & riff as Dm7.I didn't think that right & feel a Dm should be the riff chord .Also at "Come Together....",a B doesn't seem right either.A Bm fits great.Personally I am left handed but I prefer barring to open chords.& think after Bm it's to G to A & back to Dm. 2nd version was better but seemed to
miss one chord Again at " come together ..... " it sounds better as Bm to G to A & back to Dm.Feel free to correct me but I played it on acoustic & electric,both versions & on each,one chord as stated makes a big difference. From Big Mack musician & radio Rock music disc jockey.feel free to argue.lol .Chas Mack