Villian's stats: 17.42/5.68/1.47 over 264 hands

I know this is going to sound really results oriented, but it actually isn't. I'm going to post a hand from earlier today where I 3bet AK PF and lost. Because I am trying to become a better poker player, I was trying to think of which of the following were reasons for raising:
Quote Originally Posted by martindxc1e
There are only 3 reasons to bet or raise
1) Protect your hand against draws
2) For Value, meaning worse hands are likely to call
3) To Bluff, meaning better hands are likely to fold
I suppose the reason to 3bet AK is for a mixture of reasons 1 and 2, but I was wondering if I could get a regular to comment on what we want to happen here. What types of Players do you make this play against? What if they are shortstacked?

When I saw that his PFR was only 5 or 6, I figured he might have me dominated and questioned the 3bet

$0.05/$0.1 No Limit Holdem
8 players
Converted at weaktight.com

Stacks:
UTG ($10.90)
UTG 1 ($10.00)
MP1 ($3.90)
MP2 ($8.55)
CO ($23.75)
Hero ($10.45)
SB ($9.50)
BB ($20.40)
[CO posted $0.05]
[CO posted $0.1]

Pre-flop: ($0.3, 8 players) Hero is BTN
2 folds, MP1 raises to $0.45, 2 folds, Hero raises to $1.2, 2 folds, MP1 calls $0.75

Flop: ($2.7, 2 players)
MP1 checks, Hero bets $2, MP1 goes all-in $2.7, Hero calls $0.7

Turn: ($8.1, 2 players)

River: ($8.1, 2 players)

Final Pot: $8.10

Text results appended to pokerstove.txt

452,048,256 games 0.005 secs 90,409,651,200 games/sec

Board:
Dead:
--------------------equity-------------win---------tie
Hand 0: ------51.644%-------44.42%--------07.23% { AKs }
Hand 1: ------48.356%-------41.13%---------07.23% { 88+, ATs+, KQs, AQo+ } (6%)