I once use too feel that same way, about Radio Ga Ga.
However, as I was watching Live Aid in 1985 and as Queen performed this song live. Watching how everyone there was singing, clapping along and really getting into it. It gave me goose bumps.
Now when I hear Radio Ga Ga, I always think of the Live Aid performance and it brings a smile to my face along with an overall good feeling.
Actually, I prefer the more rocking songs and Queen still kicked out a few great rocking classics in the mid 80’s and beyond IMHO such as:
Hammer to Fall
I Want It All