its just an opinion. every one has a different opinion. i own every album slash plays a major role on ( AFD, LIES, UYI 1&2, SI, both snakepit releases and both VR releases plus the GNR live album) and his guitar work sounds basically the same on every album. even the songs sound similar after awhile
i own every album tracii guns plays a major role on (l.a. guns, cocked and loaded, hollywood vampires, cuts, vicious circle, american hardcore, wasted, man in the moon, waking the dead, blacklist, hollywood raw, collectors 1, killing machine, both brides of destruction albums, 2 gilby clarke solo albums where he does a lot of guitar work and a jizzy pearl album he does song solos on). i'm missing just 2 releases he plays a major role on but excluding the gilby/pearl and demo albums he plays on tracii has played on 15 releases next to slash's 9 releases and almost every tracii release the songs sound different. i showed examples of some of his stuff but 1 song sounds almost thrash, one song is an acoustic tune with slide guitar work, 1 song has a NWOBHM feel and 1 tune is very modern sounding. i didn't want to post too many examples and fill the page up