Why do you want to know the differences? I think it’s hard to compare Blaze and Angular because Angular is a frontend framework that has solutions for a lot more concerns than Blaze (see here for Angular.JS features).
When you just compare the part of Angular that solves the concern that Blaze solves (I call it reactive rendering) then the main difference is that Angular uses a view model for data.
I suggest that you try both for at least an hour to get a feel for the differences. If you are a Meteor newbie I would suggest that you first master Meteor before you start with Angular.