Little observation for those who pump points in CON...

In D&D, ignoring CON was more or less suicide. Well I ran some numbers.

There are many rules for HP calculation in D&D, but let's use those from PoE for comparison. Namely you take 3 HD + 1HD/Level (including Lvl 1) + bonuses, and let's compare that to "average" characters.

In D&D 3.5, the "average" hit dice was d8 (with -5HP per HD at 1 Con, +0HP per HD at 10 CON, +5HP per HD at 20 CON), in PoE the "average" is 12 with a bonus of 20% (10 CON). For a level 1 character, 3 HD + 1HD/Level (including Lvl 1) + bonuses gives you the following hit points

CON D&D3.5 PoE

1   12     49

10  32     56

20  52     67

Basically, the effect of CON in D&D 3.5 is much, much more important than in PoE. A max CON character in D&D would have 4.3 times the hitpoints of a min CON character. In PoE, a max CON character would have 1.4 times the hitpoints of a min CON character. Using harder D&D rules like the standard Max HD + random d8 + bonus makes everything even further appart.

You could interpret this as a sign PoE needs a bigger CON bonus for it to be worth something, or that you need to invest more in CON for the bonus to be meaningful. But really what I think that what this means is that in PoE, CON will not make-or-break your character. While a fighter with 20 CON will have an edge over a 10 CON fighter, that edge is more or less 20% more hit points in POE, where it was 60% more hit points in D&D 3.5.