Williams testing livery is probably my fafourite. I was quite disappointed they didn’t use it during the season.
Then there’s Renault, which was probably the easiest to spot in any conditions, which i think is what good livery should do.
Speaking of white liveries, i preferred the 2010 Sauber to Brawn.
On a side note, I started watching F1 in 2002 and always wanted to see a black and red car. Then in 2010 i did. Virgin ruined it for me :D