Frankly, I don't see any similarity between Buttle and Weir except that they're both lyrical skaters. Jeff is definitely a better skater between the two, probably his only weakness is the inconsistency of his jumps, but his footwork and spins are superior to the Weir's.
Artistry wise, Buttle is much more versatile. Major difference between the two is that Buttle's performance is all about the music, his touches the audiences' hearts with his accurate interpretation of the music; while Weir is all about himself, when the music fits his image and personality, like swan, it works very well, however, his style is very limited, that's why he's getting so predictable and boring.
I also prefer Buttle's programs to Weir's because they have good choreography and nice transitions, instead of tons of simple crossovers and poses between the elements. That's what makes Jeff (and now Patrick Chan) the PCS king.
I always have more respect to the skaters who are willing to stretch their limits and keep changing and improving themselves than those who prefer to play it safe and keeps repeating themselves.
To each his own. Buttle had just ONE competition where it all came together and he skated two clean programs. While he was indeed versatile and artistic, too many of his programs were marred by wonky jump landings and falls. Buttle disappointed his audiences just as many times as he thrilled them.
I don't see that Buttle 'stretched his limits' any more than Weir has, or that he changed and improved himself more than any of the other elite skaters. I think the skater who has done that this year is Jeremy Abbott.