Poll: Which MIP solver do you use?

The recent discussions about the new Gurobi solver and its performance as compared to CPLEX  ([1], [2]) as well as the discussion about using open source solvers ([3]) made me wonder about the proportion of  people using a particular solver.  So I decided to set up a poll and find out who is using what.  There are many solvers out there… So drop me a line if you feel that another solver should be included.