I am not certain what your question is. If you are asking which is best, I would you say you answered some of your own questions.
Here are my thoughts:
1) MT low shin kick to leg - golden move but what happens if the shins clash with no pads
****What part of the leg is the target contact area? Inner/outer quad are great targets. Shin to shin may cause problems (requires a Lot of conditioning), but shin to calf has been a finish move for me.
Lead leg low kicks are a valid sweep technique.
2) MT body kick - devastating
****If you said 'potentially' devastating I would agree. It is probably the easiest, most natural kick for a MT guy to throw. Because it is a mid section kick it is also one of the easiest to kick. CAN it be devastating? Sure; along with many other kicks.
3) push kick - creates huge distance and good move against knife or weapon
*****Agree that it creates distance. It would be a very conditional kick against a weapon since it is not a conventional disarming kick.
4) side kick - to knee or body or leg - I learned this on my own and it’s not bad . Key is the hop step . Saw many videos . I can do front or turning
*****True side kicks have an unusual geometry. To have full power without sacrificing too much of the kickers balance they are better used low or high. The standing leg rotation can leave a person in an awkward spot if they are not polished at the return part of the kick(rotate out/rotate back). Hop step (slide, shift, etc...)is one of many 'flavors' or the side kick.
They are good as a check (kind of like the push kick you mentioned) but this usually does not cause any real damage.
5) krav groin kick - my go too move . Snap kick
*****I Don't know much about a krav specific groin kick. From a SD perspective, it has a Lot to do with the shoes you have on, as well as the other usual variables like angle, opportunity, practice, etc...
6) snap kick to face - very popular in ufc from rear leg
*****The key word part your statement is UFC. Highly practiced people who have thrown thousands of high front kicks at power, with a strategy in mind. I am a TKD guy and will tell high kicks can get you in as more trouble than they can get you out of if you are not very, very practiced at them.
That said, if I have/create distance in would use a front kick.
7) Oblique kick - to front , rear or side knee for self defense
*****Jon Jones said himself, it is a very controversial move (in competition). In self defense it is a Great kick. It can be really hard on someone knee, can keep them off of you, and you should never be off balance with the body position and height of the kick. Like any kick, there is a good bit of practice needed to really make it work.
Good post.
