Who is affiliated with more bands, Ronnie James Dio or Luca Prodan?
Luca Prodan: Luca Prodan (17 May 1953 – 22 December 1987) was an Italian–Scotish musician and singer. Ronnie James Dio:  He fronted and/or founded numerous groups including Elf, Rainbow, Black Sabbath, Dio, and Heaven & Hell.
i don't know