KK help...

These are 4 KK hands from my last session. All villains are TAG regulars except hand 2. How would you play these hands? Are my lines okay?

PokerStars No-Limit Hold'em, $1.00 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG ($127.75)
MP ($144.60)
CO ($71.15)
Hero ($136.75)
SB ($96.85)
BB ($238.30)

Preflop: Hero is Button with Khttp://www.flopturnriver.com/phpBB2/...iles/heart.gif, Khttp://www.flopturnriver.com/phpBB2/...iles/spade.gif.
3 folds, Hero raises to $4, SB calls $3.50, BB calls $3.

Flop: ($12) 4http://www.flopturnriver.com/phpBB2/...iles/spade.gif, Thttp://www.flopturnriver.com/phpBB2/...es/diamond.gif, 8http://www.flopturnriver.com/phpBB2/...iles/heart.gif (3 players)
SB checks, BB checks, Hero bets $6, SB folds, BB raises to $18, Hero calls $12.

Turn: ($48) 6http://www.flopturnriver.com/phpBB2/...iles/spade.gif (2 players)
BB bets $17, Hero calls $17.

River: ($82) 2http://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)
BB bets $55, Hero calls $55.

Final Pot: $192

PokerStars No-Limit Hold'em, $1.00 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

SB ($26.60)
BB ($124.45)
Hero ($97)
MP ($101.90)
Button ($55.20)

Preflop: Hero is UTG with Khttp://www.flopturnriver.com/phpBB2/...iles/heart.gif, Khttp://www.flopturnriver.com/phpBB2/...miles/club.gif.
Hero raises to $4, 1 fold, Button calls $4, 2 folds.

Flop: ($9.50) Qhttp://www.flopturnriver.com/phpBB2/...iles/heart.gif, 6http://www.flopturnriver.com/phpBB2/...es/diamond.gif, Jhttp://www.flopturnriver.com/phpBB2/...miles/club.gif (2 players)
Hero bets $7, Button calls $7.

Turn: ($23.50) 5http://www.flopturnriver.com/phpBB2/...miles/club.gif (2 players)
Hero bets $13, Button calls $13.

River: ($49.50) 8http://www.flopturnriver.com/phpBB2/...es/diamond.gif (2 players)
Hero bets $32, Button calls $31.20 (All-In).

Final Pot: $112.70

PokerStars No-Limit Hold'em, $1.00 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

CO ($319.25)
Button ($56.90)
SB ($100.50)
BB ($116.25)
Hero ($108.90)
MP ($89.55)

Preflop: Hero is UTG with Khttp://www.flopturnriver.com/phpBB2/...iles/heart.gif, Khttp://www.flopturnriver.com/phpBB2/...iles/spade.gif.
Hero raises to $4, 2 folds, Button calls $4, SB calls $3.50, 1 fold.

Flop: ($13) 6http://www.flopturnriver.com/phpBB2/...miles/club.gif, 3http://www.flopturnriver.com/phpBB2/...es/diamond.gif, 2http://www.flopturnriver.com/phpBB2/...es/diamond.gif (3 players)
SB checks, Hero bets $10, Button folds, SB raises to $35, Hero raises to $104.9, SB calls $61.50 (All-In).

Turn: ($214.40) 5http://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players, 1 all-in)

River: ($214.40) Jhttp://www.flopturnriver.com/phpBB2/...es/diamond.gif (2 players, 1 all-in)

Final Pot: $214.40

PokerStars No-Limit Hold'em, $1.00 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Button ($123.90)
SB ($134.85)
BB ($100)
UTG ($101.75)
Hero ($98.90)
CO ($97.65)

Preflop: Hero is MP with Khttp://www.flopturnriver.com/phpBB2/...es/diamond.gif, Khttp://www.flopturnriver.com/phpBB2/...iles/heart.gif.
1 fold, Hero raises to $4, CO raises to $15, 3 folds, Hero raises to $50, CO raises to $97.65, Hero calls $47.65.

Flop: ($196.80) 6http://www.flopturnriver.com/phpBB2/...miles/club.gif, Qhttp://www.flopturnriver.com/phpBB2/...iles/heart.gif, 6http://www.flopturnriver.com/phpBB2/...iles/spade.gif (2 players)

Turn: ($196.80) 9http://www.flopturnriver.com/phpBB2/...miles/club.gif (2 players)

River: ($196.80) Thttp://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)

Final Pot: $196.80