Before I bought my Busa in Nov 04 (it's a stock 99) I rode a TLR1000, ZX12R and my Busa.
Loved the TLR. Good grunt for riding around town, but at higher speeds it was not as stable or powerful as the Busa.
Liked the 12. Boring at low revs and didn't tip in or feel as stable as the Busa. High revs... not bad, but felt like an empty beer can.
Loved the Busa. Got hooked first time. Still not comfortable with the power, so turbo...? ...maybe a few years down the track...