I play all sorts of stuff. The effects are more for what the song itself calls for, rather than when it was written.
I basically add effects for my own taste, irrespective of what song I am playing.
I always have a little bit of reverb on just to wetten the signal. There's a spring tank in the amp so I just set that to 2.
I like to use a slow flanger effect on clean tone parts with some echo trails, both rhythm and (single note) leads. A phaser is good for something different, or to really "chop up" a rhythm bit- Andy Summers does it the best in Message in a Bottle where he uses a Phase 90 for just a few seconds to really goo up his flanged guitar sound. I love it.
I try to mix in a chorus effect for distorted tones just to enrich a harmonic complexity (sounds fancy I know...basically it's a slight phasey swirl as the notes ring) but it can be tricky trying to get it to sound right. I don't like the low end thunk to get muddied up, or sound too washy or wobbly or that digital 80s side-to-side-whacked sound. I'm starting to think if it's just a result of the comb filtering when the modulated and unmodulated frequencies mix.
Some guys have got it right- Iron Maiden for example. I could hear chorus on their rhythm guitars and it sounded perfect, not washy at all. Steve Stevens does it good too. I'm still working on how to get it to work for me. A long process indeed.