You cannot beat a good fabric and paint job on a Cub. I used Sig Koveral and Latex paint on my Cub. My Cub is in it's 3rd flying season and looks as good as the day I panted it. The Koveral stays tight and the Latex paint has held up great, you must clear coat the Latex if you are using glow fuel.
Here is a couple pics of my Cub and a link to my build thread. [link]http://www.rcuniverse.com/forum/m_2708451/mpage_1/key_/tm.htm[/link]
Anthony