@Meleena: well that's simple pugi is a melee job so most of the time you'll get direct attack so it's more effective if you raised your VIT and DEX, also mobs that's use magic are not so common and even so Shell is enough to make your defence against it.
Magic attacks dont have to be direct, could be AoE and lets face it Shell does almost nothing (at least to me).
There are a lot Bomb, Imp and Elemental enemies so I think there are enough reasons to have a bit of Better defence.
Anyway I kinda get what you mean, but I still feel that Magic Defence is important (raises your MP pool too).

@Ichi
I don't really play any of the magic classes (hate them :P).
I Ranked Con to 24 and THM to 22 but I only did that to get some good abilities from them, so I dont really want to rise INT and PIE too.

My stats are: STR: 116, DEX: 112, VIT: 112, INT: 16, MND: 70, PIE: 16
I chose to give a bit more to STR cause my equipment at 44 Rank give a lot to VIT, If I can't get at 2000HP by Rank 50 (and propably I will not) Ill tweak a bit to get that 2000.

I Don't really evade that much, so I dont use Light Strike at all.
For attacking I mostly use: Heavy - Flurry and Skull Sander - Concusive Blow - Aura Pulse.
For defence I have: Protect - Shell - Shock Spikes - Stoneskin - Defender (I don't really notice any big deifference with Protect and Defender on :/ )

I'll rethink my strategy once the stats start making sence and difference...