What's the "easiest" and best pre-war set to complete?

[sterlingfox]

1936 Goudey (set of 25) is the perfect candidate for cheap and easy.
1935 Goudey 4-On-1 basic set of 36 is in color, has 4 players per card, only the Ruth will really set you back, and isn't that much larger.
1938 Goudey is also small and somewhat budget friendly, but some don't like how they look. Personally, I like them a lot (particularly the high numbers). The DiMaggio and Feller rookies will cost you a pretty penny.
1934 Goudey is under 100 cards and probably the most attractive (IMO), but there's 2 Gehrigs and a Greenberg rookie, so it will cost a bit more than some of the others.
1934-36 Diamond Stars is just over 100 cards, has a fun, art deco style of artwork, and has no Ruths or Gehrigs, but the high numbers will set you back a bit and can be elusive to find.
1933 DeLong is another good one. Small set. Pretty. But they are shooting up in price lately. I'm not sure I'd consider them as budget friendly - especially the Gehrig.