Wild version counterparts with contrasting elements

BST(Post Gen VI stats only): 

OR/AS: 

1. Koffing has 340 BST, Grimer has 325 BST.
2. Weezing has 490 BST, Muk has 500 BST.

X/Y:
N/A

B2/W2:

1. Meditite has 280 BST, Makuhita has 237 BST.
2. Medicham has 410 BST, Hariyama has 474 BST.
3. Shelmet has 305 BST, Karrablast has 315 BST.
4. Trubbish has 329 BST, Minccino has 300 BST.
5. Garbodor has 474 BST, Cinccino has 470 BST.

B/W:

N/A

D/P:

1. Beautifly has 395 BST, Dustox has 385 BST. 
2. Nidoran Male has 273 BST, Nidoran Female has 275 BST.
3. Mr. Mime has 455 BST, Sudowoodo has 410 BST.
4. Mime Jr. has 310 BST, Bonsly has 290 BST.

R/S:

1. Koffing has 340 BST, Grimer has 325 BST.
2. Weezing has 490 BST, Muk has 500 BST.

HG/SS:

1. Breloom has 460 BST, Shiftry has 480 BST.
2. Breloom has 460 BST, Nuzleaf has 340 BST.
3. Shroomish has 295 BST, Seedot has 220 BST.
4. Arbok has 448 BST, Sandslash has 450 BST.
5. Ekans has 288 BST, Sandshrew has 300 BST.

G/S:

1. Arbok has 448 BST, Sandslash has 450 BST.
2. Ekans has 288 BST, Sandshrew has 300 BST.

FR/LG:

1. Koffing has 340 BST, Grimer has 325 BST.
2. Weezing has 490 BST, Muk has 500 BST.
3. Nidoran Male has 273 BST, Nidoran Female has 275 BST.
4. Kingler has 475 BST, Seadra has 440 BST.
5. Krabby has 325 BST, Horsea has 295 BST.

R/B:

1. Koffing has 340 BST, Grimer has 325 BST.
2. Weezing has 490 BST, Muk has 500 BST.
3. Slowbro has 490 BST, Golduck has 500 BST.
4. Slowpoke 310 BST, Psyduck has 320 BST.
5. Kingler has 475 BST, Seadra has 440 BST.
6. Krabby has 325 BST, Horsea has 295 BST.
7. Cloyster has 525 BST, Starmie has 520 BST.
8. Shellder has 305 BST, Staryu has 340 BST.
9. Nidoran Male has 273 BST, Nidoran Female has 275 BST.

 Ability Count(Post-Gen VI count only):

 OR/AS:

N/A

X/Y:
N/A

B2/W2:

1. Meditite has two Abilities, Makuhita has three Abilities.
2. Hariyama has two Abilities, Medicham has three Abilities.

B/W:
N/A

D/P:

N/A

R/S:

1. Banette has three Abilities, Dusclops has two Abilities.
2. Shuppet has three Abilities, Duskull has two Abilities.

HG/SS:

N/A

G/S:

N/A

FR/LG:
 N/A

R/B:
N/A

Types, Typings and Type Counts(Post Gen VI typings only):

OR/AS:
N/A

X/Y:

1. Zangoose is Normal-type, Seviper is Poison-type.
2. Beedrill is Bug/Poison-type, Butterfree is Bug/Flying-type. *
3. Kakuna is Bug/Poison-type, Metapod is Bug-type.
4. Weedle is Bug/Poison-type, Caterpie is Bug-type.

 B2/W2:

1. Hariyama is Fighting-type, Medicham is Fighting/Psychic-type.
2. Makuhita is Fighting-type, Meditite is Fighting/Psychic-type.
3. Heracross is Bug/Fighting-type, Pinsir is Bug-type.
4. Escavalier is Bug/Steel-type, Accelgor is Bug-type.*
5. Garbodor is Poison-type, Cinccino is Normal-type.
6. Trubbish is Poison-type, Minccino is Normal-type.
7. Lilligant is Grass-type, Whimsicott is Grass/Fairy-type.
8. Petilil is Grass-type, Cottonee is Grass/Fairy-type.

 B/W:

1. Lilligant is Grass-type, Whimsicott is Grass/Fairy-type.
2. Petilil is Grass-type, Cottonee is Grass/Fairy-type. 

D/P:

1. Dustox is Bug/Poison, while Beautifly is Bug/Flying.
2. Mr. Mime is Psychic/Fairy, while Sudowoodo is Rock.
3. Mime Jr. is Psychic/Fairy, while Bonsly is Rock.
4.  

 R/S:
N/A

HG/SS:

1. Sandshrew-line is Ground, Ekans-line is Poison.
2. Beedrill is Bug/Poison-type, Butterfree is Bug/Flying-type.
3. Kakuna is Bug/Poison-type, Metapod is Bug-type.
4. Weedle is Bug/Poison-type, Caterpie is Bug-type.

 G/S:

1. Sandshrew-line is Ground, Ekans-line is Poison.
2. Beedrill is Bug/Poison-type, Butterfree is Bug/Flying-type.
3. Kakuna is Bug/Poison-type, Metapod is Bug-type.
4. Weedle is Bug/Poison-type, Caterpie is Bug-type

 FR/LG:

1. Beedrill is Bug/Poison-type, Butterfree is Bug/Flying-type. *
2. Kakuna is Bug/Poison-type, Metapod is Bug-type.

 R/B:

1. Starmie is Water/Psychic, Cloyster is Water/Ice.
2. Slowpoke-line is Water/Psychic, Psyduck-line is Water.

 *These are not wild version counterparts, but rather evolutions of the wild version counterparts.

 Additional notes:

1. Kingdra has 540 BST and Water/Dragon-type, while Kingler has 475 BST and Water-type.
2. Mega Banette has 555 BST, while Dusknoir has 525 BST. Dusknoir has two Abilities, while Mega Banette has one.

Edit(05.12.2016): Arbok's BST has been updated to 448.
Edit(28.12.2019): Weezing has now three Abilities.