I was thinking that it might actually be a lot more interesting if the vampire stages were simply reversed. A very simple change where after feeding you get the strongest form but people hate you ect. If you stop feeding you are weaker and not seen as a threat.
A really really super simple change like this might be cool but I am not sure if it will break Dawnguard in some way... However I CAN say that the latest version of THS (Will most likely release it tonight) would greatly compliment such a simple change...

Anyone have any thoughts on this? Yay or Nay? Would it break Dawnguard?

I felt weird about this too, but my preferred implementation would be:

After feeding:

• Strongest power
  
• Not feared (appearance is normal for a vampire)

After awhile not feeding:

• Weakest power
  
• Feared (more feral appearance, irregular behavior)

Having to starve yourself as a vampire in order to become stronger seems backwards and doesn't actually incentivize feeding (besides the fact that people will no longer hate you).

Yeah I have to agree, it especially does not mesh well with survival eat drink sleep style mods when the only way to get stronger is to starve too...
I am not sure about the feared part though as I would be fine with it either way...

Surely a mod like this already exists XD. Anyone know what its called?

This has been brought up before and I agree. As a vampire you should be strongest right after you feed, IMHO.

I am willing to make a dirt simple switch around mod where literally all it does is swap out stages. If that's all it does its possible it might not mess with Dawnguard very much. *shrugs*
Maybe call it reverse-a-pire or something comical...

Question is, what will I be breaking if I do this? hmmm

You'll probably need to talk to the Beluga Sangunaire and Better Vampire folks to see if it would mess with them or duplicate what they're already planning to do. If not I say go to town.

Also see the thread about moving Vampire Lord powers to normal form. I think these ideas could go well together; perhaps only allow the player to use Vampire Lord powers when in normal form when the player is at max or near-max vampiric strength directly after feeding. This would again incentivize staying fed as a vampire.