Woaw a ton of things here. Next time would you mind using some paragraphs, makes it easier for us to read

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I don't see how Haile Selassie is a bad choice for Ethiopia? Again compare the two wars.
The first Italo-Ethiopian War pitted 110k soldiers vs about 17k Italian soldiers. And Menelik II is a great choice by all means, but the tecnology developed greatly in the 40 years that transpired between the wars.
So while Menelik II was able to win the first war even with older tech, the disparity was still not as great (numbers and tech) as compared to the Second Italo-Ethiopian War. You can't underestimate the tech differences. Menelik II was able to starve the Italian Soldiers out of their fortifications and then superior numbers were able to annihalate the Italians.
Haile Selassie didn't have the luxury to starve his enemies out. Artillery, planes, gasses, all developed greatly in 40 years. Haile Selassie still managed to equip a large amount of soldiers
EVEN AS the English Government and French Government had signed a secret treaty allowing the mass transport of weapons/artillery against Ethiopia to the Italians. The Hoare-Laval Pact was a deal signed to give the Italians Ethiopia in exchange for helping against the Germans in an upcoming war.
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So considering that, consider what he accomplished. His touring and appeals to the League of Nations caused mass resignations in the English and French Gov'ts. Because of him, the French and British stopped their secret agreement almost entirely on his personality and resumed support for Haile Selassie. In fact if it wasn't for Haile Selassie Italy would have been an ally in WW2, and the French and English would have never came to the rescue of Ethiopia during the World War.
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Compare that to the 600,000 troops the Italians mustered against Haile Selassie. They were determined to not be embarrased. With English and French permission they were able to ship both the needed weapons and soldiers into Ethiopia. 600k vs about 20k is a huge difference.
Prior to the Hoare-Laval pact in fact, Haile Selassie had been winning against the Italians
AGAIN. Haile Selassie launched a Christmas day offensive that surrounded and was forcing the Italians to retreat. In fact Mussolini almost lost the entire campaign and would have due to superior Ethiopian Tactics had it not been for chemical gasses.
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Haile Selassie was able to save his country still. His influence in Europe was able to save it despite all odds. He wasn't voted Time's Man of the Year for nothing. And his speech at the League of Nations is one of the best speeches ever given they say. He rightfully predicted that Ethiopia would only be the start. He predicted that if England and France did not act, that other small nations would fall in Europe. In fact a Czechen Nationalist committed suicide soon after Haile Selassie spoke in the hall because he realized Haile Selassie was right. The English and British didn't appear as if they wanted to help. And that they were going to abandon the small nations of the world and that his own nation could be enveloped soon too (he was right).
Soon after the Hoare-Laval Pact was revealed to the world causing disgrace to the governments and ensured Italy would not be an ally in the upcoming World War. His tourings in Europe caused the new British and French Governments to begin supplying the rebels and broke the deal between them and the Italians. Because of this Mussolini became enraged, lost Tunisia (France got it as part of the secret treaty), and Germany was able to come and ally them)