...Wow, you're not a chemist, are you? C-4 wouldn't work in grenades, it's a whole different kind of triggering mechanism and a whole different caliber of detonation. Of the loose crap that you have there, I'd say Nitroglycerin, but even then only as a processing agent, since the crap is just as likely to blow you up as anything else. It's all about the Nitroamines, man, because the nitrotoluenes are crap in comparison. HNIW, HMX, RDX, and PETN are where it's at my friend. Failing that there's the ammonium family of Boom-producers, Two of which I'll name here: APCP and ANFO. Any one of these work better than what you've got boringly listed up in the poll, and all of them are much more stable (and fun) than what you're used to dealing with. Hell, there's things around that are much more fun than that up there that don't even explode, they just rapidly decompose with a loud bang (see: Nitrogen triiodide) or lots of cool effects (homemade smoke bomb from saltpeter and sugar).
Just goes to show--don't play with bangs if you don't know what will do what.
