One of the things that annoys me the most, is not having the appropriate mount at the press of a button, so I made this macro to limit that problem as much as possible.
This is that superawesome macro - weighing in at 248 characters.
Code:
/cast [swimming,mod:shift,nomounted][swimming,noflyable,nomounted] Sea Turtle;[swimming,mod:alt] Abyssal Seahorse;[flyable,nomod,nomounted] [swimming,flyable,nomod]Icebound Frostbrood Vanquisher; [nomounted] Mechano-Hog;
#show Smoke Bomb
/dismount
If you are swimming, and can fly - pushing it will cast the flying mount
If you are swimming, and can fly - shift-clicking will cast the sea turtle, and alt will cast the seahorse
if you are swimming and can't fly, pushing it will cast the sea turtle (and alt will cast the seahorse)
if you aren't swimming, and can fly - it will cast the flying mount
if you aren't swimming, can fly, and hit any modifier key, it will cast the ground mount
if you aren't swimming and can't fly, it will cast the ground mount
if you are mounted, it will dismount you.
The "#show Smoke Bomb" part is just to get rid of the question mark when mounted, that can be substituted for any other icon, or even removed.