A few recent standard-like spots

Opp is running 32/27/2.7 and a 19% 3b lol over 500 hands

Optimal play vs this type of opp?

PokerStars No-Limit Hold'em, $1.00 BB (6 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

BB ($101.50)
UTG ($110.45)
Hero (MP) ($120)
CO ($17.80)
Button ($165.85)
SB ($129.55)

Preflop: Hero is MP with Q, Q
1 fold, Hero bets $4, 1 fold, Button calls $4, 2 folds

Flop: ($9.50) 10, K, 3 (2 players)
Hero?

This one isn't so standard I guess
Button is 28/22/1.5 7.5%3b over 1.7k, SB is 26/22/3.5 12%3b over 400
Hero has pretty tight stats, notice stack sizes

PokerStars No-Limit Hold'em, $1.00 BB (6 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

MP ($100)
Hero (CO) ($187.65)
Button ($142.55)
SB ($393.40)
BB ($101.50)
UTG ($249)

Preflop: Hero is CO with J, J
2 folds, Hero bets $3, Button calls $3, SB raises to $14, 1 fold, Hero calls $11, Button raises to $142.55 (All-In), 1 fold, Hero calls $128.55

Flop: ($300.10) 3, 5, 5 (2 players, 1 all-in)

Turn: ($300.10) 5 (2 players, 1 all-in)

River: ($300.10) 7 (2 players, 1 all-in)

Total pot: $300.10 | Rake: $3

Villain is 27/24/8.3 with a 8.6%3b over 200
I should've 4b bigger pre, but meh

PokerStars No-Limit Hold'em, $1.00 BB (6 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

BB ($100)
UTG ($99)
MP ($115.45)
Hero (CO) ($100)
Button ($135.90)
SB ($97)

Preflop: Hero is CO with A, K
2 folds, Hero bets $3, Button raises to $11, 2 folds, Hero raises to $26, Button calls $15

Flop: ($53.50) 8, 9, 7 (2 players)
Hero?

On that last one you're right, your 3bet was light.

LOL

1) b/f
2) Seems fine
3) 4bet sizing is fine imo. Whatever you do don't b/f and don't open shove.

Hand two just happened to me a few hours ago. Very similar except for stacks

Full Tilt No-Limit Hold'em, $1.00 BB (6 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

Hero (SB) ($281.15)
BB ($42.25)
UTG ($146.80)
MP ($168.45)
CO ($100.50)
Button ($118.30)

Preflop: Hero is SB with 9, 9
1 fold, MP bets $3, CO calls $3, 1 fold, Hero raises to $16, 1 fold, MP calls $13, CO raises to $100.50 (All-In), 1 fold, MP calls $84.50

Flop: ($218) 3, 8, 7 (2 players, 1 all-in)

Turn: ($218) Q (2 players, 1 all-in)

River: ($218) 2 (2 players, 1 all-in)

Total pot: $218 | Rake: $3

Results:
MP had J, J (one pair, Jacks).
CO had A, J (high card, Ace).
Outcome: MP won $215