Even better, Cullen actually riding a fine war horse (to keep it on topic
).
Do we actually see Cullen riding a horse, in some war cutscene? I don't think so but it would have been great 
I would use mounts except on the PS4 the controls are weird. I feel like I am actually going slower on a mount than on foot and I also feel like I am going to break my controller.
I love riding horses in TW3 - really makes you feel you are going fast and no controller strain!
I am going to see if I can change the control constellation on the game and see if that helps.
I feel exactly the same. My mount seems very slow and it's not easy to make it sprint, and it stops every time there is a rock or something... I feel like I'm going faster on foot.
But I also like "walking" (instead of "running") in the main hall of Skyhold or in the Winter palace, to look more elegant
(did you ever imagine Cullen in that uniform he has in the Winter Palace, but in white? it would be so nice).