I love my Gnome on Ubuntu. I like PCLinuxOS too.
Load times on my laptop HP Pavilion

From Grub to Login Screen:
--- Ubunutu 8 kernal 2.6.24 (44 seconds)
--- Vista (32 seconds)

From Login Screen till Messenger(s) are loaded:
--- Ubuntu (29 seconds) Pidgen (has bothe accounts)
--- Vista (93 seconds) Yahoo and MSN