Keeper Decision - Bucky Irving, Rome Odunze, Kenneth Walker

We have a strange keeper system so I won't go into all those specific details, but I have the opportunity to keep one of these 3 players. For Bucky and Odunze, I'm effectively keeping them at the equivalent of a last round pick. For Walker, he would be aligned with a early to mid-round pick (approximately round 6 of a 13-14 round draft).

Understanding only those facts, who would you choose?

Odunze is intriguing as he should be a fairly consistent WR2 / WR3 this year and I can build my draft around having that position on my roster locked down. Luther Burden is also iffy for week 1.

Bucky is talented but the Bucs seem reluctant to make him a true RB1, and the signing of Gainwell emphasizes that. I'm sure he'll have big weeks, but I am betting he also has multiple 'duds'.

Walker should be a lock to finish as a top 10 RB, but I'm wondering if that mid-round keeper equivalent is enough of a spread for his average draft position to justify keeping him...