I have had the idea for this class for a long time but never got around to full making it, now it is REALLY close.
Tanker
{table=head]Level|Base Attack Bonus|Fort Save|Ref Save|Will Save|Special
1st|+1|+2|+2|+2|Improved Toughness
2nd|+2|+3|+3|+3|Damage Resistance 1/-
3rd|+3|+3|+3|+3|Uncanny Dodge, Endurance
4th|+4|+4|+4|+4|Die Hard, DR 2/-
5th|+5|+4|+4|+x4|Defender, Bonus Feat
6th|+6/+1|+5|+5|+5|Evasion, DR 3/-
7th|+7/+2|+5|+5|+5|Stand Firm, Living Shield
8th|+8/+3|+6|+6|+6|Greater Toughness, DR 4/-
9th|+9/+4|+6|+6|+6|Mettle
10th|+10/+5|+7|+7|+7|True Defender, Bonus Feat, DR 5/-
11th|+11/+6/+1|+7|+7|+7| Improved Evasion
12th|+12/+7/+2|+8|+8|+8|DR 6/-
13th|+13/+8/+3|+8|+8|+8|Improved Uncanny Dodge
14th|+14/+9/+4|+9|+9|+9|DR 7/-
15th|+15/+10/+5|+9|+9|+9|Supreme Toughness, Bonus Feat
16th|+16/+11/+6/+1|+10|+10|+10|DR 8/-
17th|+17/+12/+7/+2|+10|+10|+10|-
18th|+18/+13/+8/+3|+11|+11|+11|DR 9/-
19th|+19/+14/+9/+4|+11|+11|+11|Blockade
20th|+20/+15/+10/+5|+12|+12|+12| Bonus Feat, DR 10/-[/table]
(I will fill in the descriptions for the rest of them when I have time)
Hit Dice: d12 (or d10 still working on it)
Skills: (4+int mod)x4 at fist level, see barbarian skill list
Bonus Feat (duh)
Uncanny Dodge (Ex) See Player's Handbook page 26
Improved Uncanny Dodge (Ex) See Player's Handbook page 26
Damage Reduction (Ex) See Player's Handbook page 26
Evasion (Ex) See Player's Handbook page 50
Improved Evasion (Ex) See Player's Handbook page 51
Endurance (As the Feat, if a tanker already has this feat he may chose another)
Die Hard (As the Feat, if a tanker already has this feat he may chose another
Improved Toughness (+1HP per Hit Dice)
Greater Toughness (+2HP per Hit Dice)
Supreme Toughness (+3HP per Hit Dice)
Mettle (Ex) See Complete Warrior page 7
Stand Firm (Ex) The Tanker adds 1/2 level to checks to avoid being bulrushed or knocked down
Defender (Ex) +2 to deflection AC, saves, and checks when fighting defensively, +4 at level 10
True Defender (Ex) Immunity to Daze, Stun, Fear and any negative moral effects
Blockade (Ex) a tanker gets an attack of opportunity when ever he is charged grappled or bulrushed by an enemy
Living Shield (Ex) When a Tanker is between an enemy and an adjacent ally, the ally is treated as having full cover when attacked by that enemy. If the ally is 1 size category larger than the Tanker, this becomes partial cover; if the ally is more than 1 size category larger than the Tanker, this ability will not work.