So far it seems like rxvt, but I'm hoping for something even lighter.
Actually, I don't need a full terminal emulator, since I'm happy with aterm for interactive use. What I'm hoping for is something that will just tail a file in X...I don't need a prompt or any other interactive features.
I also have root-tail as a possible solution, though I haven't yet compared its resource use with rxvt.
Here's the specific plan: I have a game set up to run from .xinitrc as an alternative to the window manager, for when I just want to play that game without running any other applications. It takes a while for the game to start, though, so I currently have aterm running tail on the game's output (a file) while it loads.
The game is heavy on resources (which is why I run it without a window manager), so ideally I'd like to be able to replace aterm with a tiny app that does nothing except tail.
Thanks for any suggestions.
EDIT: I've found blurt and xrootconsole so far, both tiny in size but I haven't tried them yet.