I believe it is Palonirya, who has a Mercantile skill of 80, and the Master trainer for Mercantile also.
If ure blade skill is 75
I think the best magic skill is fire coulomb damage
If you mean "how do I jump the highest," you need to max out your acrobatics skill as well as your strength. Keep your inventory as light as possible, as you jump higher based how how much you are carrying.
Sadly No
( http://www.uesp.net/wiki/Oblivion:Mysticism ) look under Skill Increases
The highest rank for a skill is 1
When your conjuration skill reaches level 50.
If you mean your Characters speed, then you have to upgrade your Athletics skill.
Mysticism soultrap for enchanting your armor and wepons
Officer ranks require you to have a certain XP and highest skill level. For example, to get to the first officer rank, Lieutenant, you need 70 XP and a highest skill of 10. Without the 10 skill, you'd still be a Gunnery Sergeant. To be a 5-star General, you need 5000 XP and a highest skill of 50. If you had 5000 XP, but a highest skill lower than 10, you'd still be a Gunnery Sergeant.
It is 3124 (highest confirmed) or 3125.
oblivion, skyrim and batman rise of sin tzu if you have the slim 360 because its an old xbox game for wii hmmm... i cant think of any