sheeva, -1
I hope 13 doesn't consider this to calculate the average...
Sheeva is bottom tier, yes, but that doesn't mean she's bad. She is kinda underestimated. I started to learn her a few days ago and she's hard to use, but after the second day I was already beating decent players. Even players with 1000+ wins (good ones, not noob hunters).
Anyway:
Tele stomp is indeed a good move. People know how to avoid it when the opponent doesn't manipulate where to land, but when you do it, you'll get them many ,many times. It also has a wonderful recovery time.
Her throw is one of the fastest in the game. After a tele stomp, do her throw and you'll get them. It will even connect before some wake ups.
F4 is a really good move. It leaves Sheeva at a good distance, not too close to be rushed down, not too far to be zoned.
Grab and Punch is a good, very damaging special. It's also safe on block.
She has some decent mix ups. F3 for a low combo starter; 2,1,2 can be followed by either a low or an overhead hit.
Her overall damage is amazing. She can do 30+% combos with 4 hits, while other characters need more than 7 hits. This makes her combos extremely easy to do.
Hyper armor on almost all EX specials....even her fireball
She's the only character that can link a normal string to an umblockable special. You can do 2,1,2 and follow with a ground slam or x-ray.
Low grab does a very high damage, it's umblockable and kills duckers.
Bad things
She's a really really slow character. Most opponents will hit her first. So she needs to keep all the time at a safe distance.
AA grab is kinda slow and some moves will even interrupt it, like KL's dive kick. Making it useless against some characters.
Slow ground slam.
Low grab has a very short range.
She doesn't have any wake up option. If you want to get out of a corner you'll have to spend your super meter.
Her taunts kill good combo opportunities =|
Some of her combos won't work on all characters.
Sheeva= 7
Sheeva, 4.5
Keep away from her, dash her stomps, and jump the pounds and she can't do anything.
PS - her stomp is not a teleport, is just a big jump.
On the contrary, don't let her breathe, I'd say. Dashing is useless against a good Sheeva. You won't avoid her "tele" stop by dashing since the player can choose where to land.
And yes, her stomp is not a teleport. I am 100% sure of this because Mileena's teleport kick will catch Sheeva everytime when she's jumping. It's hilarious in stages like the rooftop since it looks like they are flying =P