In my dynasty league we have to keep a def from season to season, and this year was a by comity def for me which of these 3 has the most upside for next season.
Chargers, 49ers, Bills
49ers came up big for me the last two weeks of the season, but they were also play the Rams and Lions so don't know how much stock can be put into that.
Leave a link if you would like for me to comment on your situation.
Dynasty Team- QB,2RB,2WR,TE,K,Def
QB - P Rivers J Cuter M Cassel
RB - D McFadden J Best S Green D Thomas D Murray J Ringer
WR - C Johnson L Fitzgerald S Holmes E Sanders D Thomas
TE - F Davis O Daniels
K - M Bryant R Lindell
D - Chargers 49ers