On completion you talk to serana there's a dialogue to say "make me a vampire" ....is that just to be a vanilla vampire or the vampire lord?

Thanks in advance for ur help

I'd imagine she will make you a Lord since that's what she is.

if serana turns you it's lord

What do you think? Okay, lets use some logic. She is a 'Daughter of ColdHarbour' she and Harkon both became Vampires at the same time. They both did the same ritual. The 'daughters' blood is needed because its pure to blot the sun out and she is referred to (on several occasions) as a 'pureblooded Vampire'

Which one do you think is the obvious answer?

No need to be rude. If you think a question is stupid, dont waste your energy on it and move on.

Or, they could use common sense. Making themselves a much, much more intelligent and bearable person.

and you doing this is more bearable how?