Samael or Singe for Rogue ?

[Excuses]

For twink pvp perspective.
+1 for singe. I personally don't play rogue but my friends who have Sam buy singe because simply it's better.

Sam is of course a decent pet with passive heals and panic. But if you die by 2 combo, there is no point to get 2% heals. When I vs, rogue with Sam hits hard but weak and rogue with singe hits weaker but hard to kill. (with same reason nekro is good too with its shield)
Greater stat help you to survive from other rogue's combo and aa buff is decent for user and whole team too.
No mana regen sucks but it's OK if you know how to work together with your tanks.

For low lvl pve, (I have singe on my mage and Sam on my warrior)
Only thing I feel better about Sam is fewer pot spam. Actually singe aa aoe hits harder than I thought. They both are good Imo.