2. Steven Wilson My favorite songwriter of the last 25 years, by just a hair over Neal Morse. I give SW the slight nod in that regard because he is more diverse in regards to style and genres. All that aside, he can do it all. Phenomenal songwriter, phenomenal producer, great guitarist (especially as a soloist), underrated piano/keyboard player and an effective singer (given his God-given limitations). Plus, he is just an interesting guy to listen to; every time he does an interview, you always know it is going to be interesting, since he is not one to give boring answers. Sure, he is kind of pretentious, but he is British, so what do you expect?
Between Porcupine Tree, his solo career, Storm Corrosion and Blackfield, he has many of favorite albums, just not of the last few decades, but of all-time. There aren't enough superlatives in the English language for how highly I think of him as a musician.