I like odahviing because him and paarthurnax are the only friendly dragons. 

(Not including DLC)

I agree that those two are the best.

Depends... I mostly like paarthurnax for his personality. But frost dragons and odahviing have the best design. But there is something I dislike about all dragons in skyrim. They are all so stereotypical. Seems like a kid had the idea to add dragons as enemys to the game after reading some fairytails.

i love durnehviir because he's really cool

Hard to decide......... I ike Alduin's design best, but Paarthurnax's personality. Durnehviir has a good backstory, and i feel a strange sense of kinship with Odahviing.

Paarthurnax is my favourite dragon because of his character. I've always admired his wisdom, and I love his lines that question morality.

In terms of favourite "enemy" dragon. the Ancient Dragons have the most intimidating design in my opinion.

Blackout
I like vulthreyol because he is a secret and what his name is translated into

It's dark ash fire right?

Kingofdeath707

It's dark ash fire right?

Vul-Thur-Yol consists of the parts Dark, Overlord and Fire.

Frinmulaar

Vul-Thur-Yol consists of the parts Dark, Overlord and Fire.

Oh

I like Alduin, for his baddassery and design, Paarthunax's personality, and I like Odahviing because of his name but also something else that i can't quite grasp.

My favorite is Paarthunax, because he's like a mentor to the dragonborn and he's voiced by Charles Martinet whos best know for Mario and other various voices for Mario games by Nintendo.

I like paarthunax too,