As a MacTavish, I intend to get Thompson Camel and Thompson Gray, as they are also two of my favourite tartans.
I also love Buchanan, such an interesting tartan..
Forbes is the tartan of the Liverpool Scottish (my family is from Liverpool), it's based on Black Watch, and I simply like it.
Confederate Memorial is definitely on my list as well, for obvious reasons (Deo Vindice, Brothers!) and that it looks amazing.