Quote from TraDaToR:
I've been customer of both and I would go with IB ( futures in my case ).
- You cannot trade calendar spreads with TS
- TS datas are bad and you cannot see implied prices in order book so their matrix is pretty much worthless.
- TS cannot automate algos that make money, only crappy indicator ones.
The only bad thing about IB is the charting package.
And the quote feed. If you want every tick, you will need another source.