If you could make the Big 3 into the Big 4, what set are you adding?

[BillyCoxDodgers3B]

I'm in the 1940 camp as well. Names on fronts, photos, random inclusion of some older legends.

[vintagerookies51]

I'd put Cracker Jack at #4, then N172 then 1941 Play Ball

[oldjudge]

Obviously, my vote is N172. I think it is the greatest set ever. I also think some consideration should be given to M101-4/5.

[insidethewrapper]

I wonder how many "complete" sets exist, that is complete with the 52 T Mantle, T206 Wagner and Doyle and 33 Goudey with # 106 Lajoie. I don't believe the N172 has any. My order of difficulty would be:
1) N172 Old Judge
2) T206 with the above cards (Wagner & Doyle)
3 ) 33 Goudey with Lajoie
4) 52 T with/ Mantle

[Kidnapped18]

1914 Cracker Jacks hands down! For me this is the best prewar set.
The red background, the bios, the Hall of Famers and Star players are something special!
Cracker Jacks epitomize and are synonymous with MLB
The inclusion of the Federal League players is an added bonus

[insidethewrapper]

I also love cards with red backgrounds.

[Yoda]

E cards seem to be the step child of prewar due to many sets having cartoonish depictions of the players. I personally think the E95 &E96 Philadelphia Carmels are fantastic. Real artwork, top HOFer's with the Cobb, LaJoie and Wagner as the standouts. I love 'em.