never heard Unicorn, but Nightingale is just cheesy as hell throwback band. Hell, the first album was velveeta Sisters of Mercy worship. SOme of it is good, but to be honest, I've never been a huge fan of Swano's vocals, clean or growled. His growls just don't sound sinister enough, and his cleans just don't do it for me. Besides, neither of these bands were even close to as adventurous as PTM.
PTM is a Edge of Sanity project, not Swano. He didn't even do vocals for PTM, just bass and keys. But I believe he wrote a lot of the music. He needs to give up the 80's throwback rock and the mediocre early 90's death metal copycat band and get back to his bread and butter: Pan Thy fuckin' Monium.