Brutus's Dilemma

Brutus has to face a moral dilemma, should he do whats best for Rome or should he believe in what Caesar has in mind? In the end he decides or gets persuaded into thinking that Caesar is not a good leader for Rome and will only lead to chaos. But in the end it all comes down to "was this the right thing to do?"
If I was Brutus then I would not kill Caesar or give into Cassius. I would see that by letting Caesar rule I would be doing what is best for Rome. I think this is correct way to think because he is a strong, and wise person who would probably do whats best for Rome. In the first few pages of 1:1, it is about how people are very happy with Caesar and how Caesar managed to conquer Spain from Pompey. I think this shows that Caesar was probably a very strong person and certainly brave enough to attempt such dangerous tasks. This also proves that he was doing this for the good of Rome. And I think that by letting him live I,Brutus, would have been doing the correct thing.
Another reason I would have let him live is because Caesar was able to see through Cassius and know that there is probably something not trust able with him which was a true assumption.
So to summarize in my mind Caesar is the perfect leader and if I was Brutus I would not kill such a person.