Terminal apps - MacTerm vs iTerm

I've seen reviews and ads online for these two and wonder how they compare with the standard terminal.
For the most part, I wanted to install TotalTerminal that slides down a terminal windows from the top at the press of a hotkey. But sadly TotalTerminal is not supported anymore. So if I want that option, I would have to go with one of these.

Looking at the reviews, they do have more features, somehow I am not seeing how these could be better in terms of actual functionality; especially when compared with the standard terminal app.