The bonus of last year was that even the most amazing acts on the show had competition from each other example being Diversity vs Flawless, 2 incredible dance acts with that extra special touch of having some very good choreography as well as being technically proficient. Also with all the furor of SuBo, you really couldn't say who was going to win.
This year there are some very clear frontrunners just going on execution of talent. Spellbound are head and shoulders above everyone in terms of their craft. Personality or sob story aside, no other competitor was quite so top of their game as these guys.