i tend to consistently go back to pisces over siamese dream in terms of influence. i think part of the reason is that the guitars in the rock songs are so much rawer, and the lullabies are so much lusher. i think this record is really the most alternative record that corgan ever did - the pop and metal influences are tuned down a little in favour of gazier and punkier leanings. i know it's an outtakes disc, but i really think it's the band's best record.
there's some nice raw guitar playing all over this disc, but what i'm really citing is the total abandon on pissant and hello kitty kat. i used to do the old rewind, play, repeat trick on those two for hours.
(relevant tracks: why, first movement, and really whenever i lose myself on the guitar...)