RZA.
Without RZA there would be no Wu-Tang.
I honestly feel he has the best flows as well. Bobby Digital is also my favorite solo Wu Joint. That being said, every member shines at times and I go through rotations where I'm feeling one more than the others.
1. RZA
2. Method Man - He makes dope hooks, the most charismatic, unique voice and Tical sounds more like 36 Chambers part 2 than any other Wu album. He's also the member that can stand on his own the best. The world knows who Method Man is.
3. Raekwon - Straight heat and street slang. Raekwon has the best bars of the group and has stayed true to his image his entire career. Incarcerated Scarfaces & Ice Cream still get play to me to this day.
4. Ghostface - Ironman & Supreme Cliente are classics. Face & Rae fit together trading styles so perfectly. The main reason I rank Face lower than Rae despite experimenting more is that Face can sound whiny at times and later in his career his voice changed for the worst.
5. U-God - Yea I know people will hate on this but fuck it, that's what an opinion is. Golden Arms Redemption is wack, but U-God as a whole is that missing piece. His voice is dope as hell and his spits are laid back with a more west coast style flow. He can appear on any Wu song and always goes with it.
6. Inspectah Deck - Deck has a sick verse here and there but he lacks charisma and his voice is mono tone. He just doesn't stand out that much.
7. Masta Killa - Killa falls into the same category as deck but doesn't have any stand out verses. That being said No Said Date is better than Uncontrolled Substance IMO.
8. Cappadonna - Cap has spits but his voice is harsh and he seems out of place a lot of time. Beyond Winter Warz and Triumph I can't think of any classic Cap joint. He also talks way too much about his dick.
9. GZA - When the best song on your album (B.I.B.L.E.) isn't even by you, it sums it up. I like Liquid Swords but GZA while being a top notch lyricist constantly fails in the delivery of his rhymes. His voice is always mono tone and boring.
10. ODB - Dirty to me always sounded like a drunken fu-schnickens wannabe. I've never been able to sit through an entire ODB album. Now I'm not trying to diss dirty and will give him credit, he had a lot of stage presence and energy. Just not for me.