I liked the 1st 3 back in the day, but the next 3 (as I was older) didnt interest me. I watched the latest 'proper' starwars and thought 'Mehhh' but I really enjoyed rouge 1.
I particularly liked the beachy sunny planet at the end, (Scarif) and it made me want to go on a beach holiday
As Scott McD said above, I also like that vader part - Real badass