Well put, I do recall watching the buu saga as well. I liked his work ethic as a character, nobody trains harder than Vegeta lol.
I also like the fact that he was usually the one to refer to the main character "goku" (the main "hero role") as his real name instead, which was actually "Kakarot" due to the planet/ancestory from which they were both from. Vegeta took pride in things such as this, whereas others never really seemed to care so I can respect that about him as a character as well. His facial expressions are also priceless , "That smirk" . Love it. lol