Best Tank for my Team?

[pokequeen963]

well, I suggest either vaporeon, or shuckle, maybe snorlax if you can remove fightings... Vaporeon or snorlax sor 1 on 1 and shuckle for 2 on 2

Vaporeon@leftovers max Evs in defense and Sp. def
surf
ice beam
acid armor
substitute/shadow ball
Snorlax@iron ball max Evs in defense and attack
earthquake
body slam
fling
recycle
Shuckle@leftovers max Evs in attck and defenses (get pokemon with follow me in double battles)
bug bite
earthquake
power trick
toxic

(for shuckle, get pokemon with follow me for a double battle, then power trick and follor me, then sweep away!)

[Calipo]

About Pain Split... it does work really great as a defensive and ofensive move
Example:
Spiritomb has 100 max HP
Blissey has 400 max HP
Spiritomb uses Pain Split
400+100= 500/2= 250
Spiritomb still has 100 HP
Blissey goes to 250 HP
*If you do this again
Spiritomb continues at 100HP
Blissey goes to 175HP
Conclusion: Pain Split works really great on low HP Pokemon, against high HP Pokemon.

[3m0d0ll]

A Slaking with Skill Swap. Especially awesome if you are going up against a Pokemon with an ability like Lightning Rod, Water Asorb, ect, since if they use a water/ele type move, you take no damage and might actually get some HP.
Epic sweeper.

Teach it:
Skill Swap - a must!
A strong normal type move - For STAB, I recommend Strength or Body Slam.
Focus Punch - For when your foe is loafing around after you SS it. For beating Rock and Steel types.
*random move here* - I recommend Shadow Claw for beating Ghosties, but any physical move will be awesome.

[randumo24]

I'd use the vaporeon. Acid armor is a great move & you could use baton pass instead of substitute.