The sword by itself, not as a set, as its merits.
But I really can't find myself seeing Ichigo using both swords.
Zanpaktous:
The smaller one seems like it is used one-handed and for close combat.
The bigger one seems like it is two-handed use, and for quarter-range combat.
The bigger one is just too heavy to be used as a one hand combat.
But if you look closely, the bigger zanpaktou's handle is weird.
The handle looks as if it was meant for one-hand use and the rest of the handle is supposed to be some kind of the sword's guard, unless it had some other use.
If those swords combine like they do with Final Fantasy VII's Cloud's Swords, that is very poor parody of Final Fantasy.... orange hair Ichigo looking like blond Cloud wielding a huge bad ass sword and having a set of "combinable" swords.