I can't see number 3 that good but I'd go with it.
-Somewhat centralized clan castle
-Wizards in range of all storage's
-Triangular Mortars
-Great protection of dark elixir storage
-T junction
also the only bad thing I see about this design is placement of air defenses
IGN: John Paul
Clan The Dive (Elder)
Town Hall 9 Dark farmer: Rank 118
Level 27 Barbarian King Level 30 Archer Queen
250-250 level 9 walls 52-250 Lavas