70 Dart VS. 69 Dart VS. 71 DEMON

Plain and simple. Let me know what you think and why..
Looking at buying one of these cars in the next few weeks, love em all but can't make up my mind...

'69 Dodge Dart (GTS Clone)
'70 Dart Swinger 340 (Original)
'76 Dodge Duster ('71 Demon Clone)