Every league I am familiar with require drop 5 at 14. Tournaments may differ.
And here is where the whole "winning vs. development" starts. At 13u, you want to be no lighter than -8 and transitioning to -5. 14u, use the -5 and transition to the -3. But to do so, you better have good mechanics and it will cost you some hits/wins.
Sorry Golfman, I think times may have changed......
From the PG website:
This is the inaugural PG 14u Invitational that will be held annually at PG Park South at LakePoint Sports in Emerson, GA. The champion will receive a paid berth to the 2015 PG 14U Spring Southeastern Championship held May 8-10, 2015
13u and Younger: All bats -5 or greater must be stamped BPF 1.15. Must be a baseball bat, no restriction on weight or length as long as bat has, BPF 1.15 stamp. All -3 bats must be stamped BBCOR. Wood bats allowed.
14u and Older: -3 weight/length ratio only. All bats must be stamped BBCOR. Wood bats allowed.
And?
You said "Every league I am familiar with require drop 5 at 14". So....PG and triple crown require a drop 3.