Not necessarily my favourite 6 but ones that have particular memories.......
Genesis Queen Rod Stewart Sparks Status Quo The Who
........as always with these things, ask me tomorrow and it will be completely different!
Other ones from the 70s would include Hollies 'The Baby' - first single I ever bought - Commodores 'Brick House' and EW&F 'Fantasy' (pretty sure I added these in a previous one though). Just squeaking into the 70s are Rainbow 'Since You've Been Gone' (also almost certainly appeared elsewhere) and Tubeway Army 'Are "Friends" Electric'. Oh and Steve Harley and Cockney Rebel 'Make Me Smile (Come Up and See Me)'. Well, that's another 6, what can I say?! A good era - almost as good as the 80s!
(Sorry, haven't got the energy to look 'em up and post 'em. )