Competitive Armylist building with Stymie (this is a fairly catch-all article)
Specific Advice on Choices from the Army Book:
Flame Cannon: Basically, don't bother. Sorry but it's the truth! With the FAQ nerfing its range, it should rarely get more than one shot, if even that.
Magic (shutdown) and a piece on the MRoValaya
The Golden Rules
You might also want to look at the old Dwarf Guide. Although outdated, some of the articles in this guide are still very interesting and are worth a look.
Edited by David L, 09 August 2011 - 08:16 PM.