Well I did have accounts in pretty much all the brokers around. Trademonster commissions work out better if you are trading more that 5 options contracts, I usually do 3 to 5ish and so I like TOS better. Also depending on the market I like to but them 1 or 2 at a time sometimes. So per contract commission is better for me.
Trademonster is decent, they are really trying hard to get customers. With regards to IB, they are really good with the price perspective but the platform availability afterhours was something I really wanted