Both for me...............i lived through the 70's as a teenager..........i loved both and saw them both many many times. Probably Floyd more than Led Zep, but both were an experience you would never ever forget................and i defo never have forgot or will ever want to forget.
Please don't make me choose. . .
Right this second I would say Pink Floyd as I've been listening to the new Animals remix, but that could change in a heartbeat if Robert Plant announced a European tour.
Too young for either but my father was a big Floyd fan and that rubbed off when I started pilfering the vinyl collection.
Nowadays Dave Gilmour has a house just down the road from me