sorry for bringing up the old thread but I am "autoiter" for 3 years now.
AutoIt has grown in very powerful programming language now. With UDF libaries, like Auto3Lib by Paulia (over 1000 user defined functions), it may be much better than AutoHotKey. I don't know - I never tested AutoHotKey, but as far as I can see from visiting support section on their forum, it is much more complicated than AutoIt's syntax. It may be better to old C++ geeks but I more prefer BASIC like syntax. A simple example of AutoIt script (by me - desktop gadget which shows time) can be found at http://i542.gigacities.net/AlphaClockSetup.zip. If somebody asks me, I like AutoIt more, but it is your choice between AutoIt and AutoHotKey.