I misread the title of another thread so thought I would ask you what I thought it said.
So what mount are you using?
Currently I’m using the green fox mount for korthia and the maw, and the wilderling I got drop from the korthia rare where you ride it, for flying.
How about you guys and gals?
Since Blizz changed the animation on Hippogryphs I’m now using Headless Horseman
Bastion flying mount lion thing. I’m “all in” on the Bastion look this expansion. Come for the clothes, wear the clothes, including the mount.
Normally, it’s a Winterspring Frostsaber and the Molten Front Hippogryph (that’s likely what’ll be next expansion).
Hand of Bahmethra when not flying. Why doesn’t the hand fly? 
On my monk I am using a war wolf from WoD that matches my transmog, and for flying I use a Thundering Jade Serpent or Yu’Lei, Daughter of Jade.
My druids just use flight forms, but I have the tree mount and some race-specific mounts on their side action bars just in case.
My warrior rides a storm drake from Legion.
Everyone else uses Friendship Moose.
I’m switching between Fallen Charger and the golden hand for ground, and the new Venthry mount for flying.
Swift Zulian Tiger for ground and astral cloud serpent when flying
Silvermoon hawkstrider or squeakers if I need to fly. As you can possibly tell I always seem to put more effort into ground than flying mounts. In the day you still needed a ground mount for the old world then later pathfinder reversed the situation.
I stopped using them ever since they changed the noise they make when summoned.
Travel Form or the Priestess’ Moonsaber.
Mostly old blanchy
I’m currently using Hearthsteed because it looks good with my set…that or echero…or the store mount horse that is the same color as echero
Hearth steed is a classic.
I also love using the cindermane charger.
I’m really sad the mount collection mount got changed from a blue and red flamed one of these to a recoloured chicken, as the moment I saw it, I was ready to mount hunt for it.
Then they removed it from the game completely 
I swap between the 2 hand mounts I have and fallen charger for ground. And use the lord of the corpseflies for flying
Sunstone Panther and Grand Expedition Yak.
Travel form because it is super convenient and inside BGs Alabaster Hyena because the small size and the fast walking animation makes you feel that you run super fast and it also looks nice
I am my mount
Terrified Pack Mule on this character. A Deathroc on my Orc hunter, and Warforged Nightmare on my mage.
On her I’ve been using the Articuno store birb since it came out. I like it! It’s a pretty mount.
And a change of pace from the jewel panthers I usually use.