After reading the "best" Topps sets from this time era, I am curious to what you guys thought about the "worst" ones, I guess mostly based on design/eye appeal and not necessarily key rookies, value, other factors.
50s: 53 (cartoonish), 54 (no top border), 56 (cheap knock-off of '55)
60s: 61, 64, 66, 68, 69 (boooring)
70s: 70, 72, 74, 78-9. (too vanilla)
JMO