I still use from times to times my Canon New F-1, most FD lenses were excellent.
I own the following and can only recommend them :
24mm f2
35mm f2
50mm f1.4
85mm f1.8
135mm f2
The L glass was also excellent, but they go for around 600$ a piece.
Super wide I would consider the 17mm f4 rather than the 20mm f2.8.
The 24mm f2 was slightly better than both the 1.4 and the 2.8.
28mm I would take the f2 but the 2.8 is decent and extremely cheap.
35mm f2 is good, can't tell about the 2.8.
The 50mm was probably the best 1.4 of all brands (except probably Leica). IMO the 1.2 L is not worth 10x the price, even when it is slightly better than the 1.4.
The 85mm 1.2 was superior to the 1.8 but sells for 3 to 4 times the price.
100mm f2 is a killer, but the 2.8 is no slouch at all.
135mm f2 is the best but prone to flare, the 2.8 is excellent as well
The 200mm f2.8 was just average.
if you need a 300, then try to find the f4 / L, since CA was really a problem with the non L
Hope this helps