Most trading card manufacturers had improved the designs of their base sets in 1988, but did they merely improve the designs from "crap" to "average?" Let's take a look at the five main sets:
1988 Donruss:


Donruss continued to disappoint fans with their horrible looking 1988 set...
1988 Fleer:


Fleer tried something different with this set. It's a shame that they settled with average.
1988 Score:


I'm not a fan of colorful cards, but the backs in this set looks fantastic!
1988 Sportflics:


The fronts of this set looks similar to last years set, but the backs are a huge improvement!
1988 Topps:


Topps bombed in 1987. They took note and designed the fronts of this set well. The backs looks horrible though.
The Winner: None of those sets are perfect. Topps has the best fronts, and Score has the best backs; whatever the case, the fronts of a card takes priority, so Topps wins this award.
Images via CheckOutMyCards.com