Ranger : Energy 25, regeneration +3
Warrior : Energy 20, regeneration +2
Necromancer / Mesmer / Elementalist : Energy 30, regeneration +4
However, I didn't find any references to the Health (Hit Points) and I'm not able to test it as the last beta week-end is over (*sigh* - can't wait for the retail

Is the starting amount of Health and regeneration rate identical for all professions ?
This question is important for me as I want to do a Vampire type of Warrior (based on damage and health stealing). However, I can't decide what is the best between N/W and W/N. If Warrior starts with a larger amount of health, I'll probably go for a W/N. If it's not the case, I'll go for a N/W (as the armor difference would not be a enough big reason for me to have less energy).
Thanks for the answer !