$11+R sat - PF allin decision before the bubble

[campi]

42 players left, 34 places pay. Hero is ~20th with 14k (2k/4k blinds 400 ante)

Villain was playing tight (especially in the blinds), but started to open-push a little more in the last few orbits.

What range do you put him on? I feel really lost in this situation, what should be the the main considerations whether or not to call?

PokerStars No-Limit Hold'em Tourney, Big Blind is t4000 (8 handed) internettexasholdem.com

MP2 (t33590)
CO (t31149)
Button (t12190)
SB (t8350)
Hero (t14169)
UTG (t14400)
UTG+1 (t9670)
MP1 (t14210)

Preflop: Hero is BB with A[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/club.gif[/img].
<font color="#666666">5 folds</font>, <font color="#CC3333">Button raises to t11990</font>, <font color="#666666">1 fold</font>, Hero ???