Well, a time ago, I said that I will play with Savoy, Oman and a Japanese minor at the start... Well, here, I show WHY I want them, and the objectives that I will have... All of them will be after play the tutorial, of course.
Savoy:Small enough to no overwhelm yourself, and big enough to be powerful. It is in the mediterraneum, and in the HRE, then, I can experiment both the HRE system and the berber piracy one. Rich lands, if I pick the right ideas and set the right sliders, I can become an economical power. I will try to conquer some provinces in North Italy, and, if I am lucky, form Italy (even when I doubt it). I will try to become a kingdom too (Savoy start as a county, at least in the mod)
Oman: I love this country. It is the only one ibbadi country in the world, thing that add a special feeling to them. It isn´t tribal, but has tribal provinces, then, I can deal with tribes without the disadvantages of be one. Almost fully modernized, I can modernize relatively easily, at least, easier than with a lot of other countries. Once I have modernized, I will try to colonize/conquer the East African coast, at least parts of it, and some ports in India, and I will try to become the biggest naval power in the region... Until the Portuguese/British/French/Whoever become the naval power of Europe arrive :P Maybe, only MAYBE, will try to unify the paeninsula... But only if I see that I am powerful enough, and that I can administrate it properly.
Japanese clan (probably, Uesugi. Maybe Ashikaga): Well. They are cool countries, with a lot of new, cool features.... I will have a hard, funny time unifying Japan, or, at least, trying to do it. If I play with a non-shogun clan, I will try to disband the shogunate, to unify Japan under a new shogun. If I play as Ashikaga, will try to not form Japan, but keep the old shogunate alive, restoring his old power, and acting as the "police of Japan" (In Gameplay, I will try to get the maximun "Bakufu Authority", without change my tag to Japan, acting as the "good guy", and protecting the clans form the menaces of other countries, and the other clans...) If I unify Japan as other clan, I think that I will try to conquer Korea, or, even, Colonize Taiwan and Philippines/some Pacific Islands. Also, I think that I will become Christian if I see that it worth it... I think that a Catholic nation in East Asia must be cool :P
I think that all of them are quite plausible, and not REALLY ambitious... I will see if I´m lucky XD Once I have completed all these three games, and the tutorial, I think that I will try to unify Persia as Shirvan (as in my actual MMU game), or play as Austria/Brandemburg and try to become the Great Power of the Empire...