I don't like to blast brokers or trader's personal choices. But seriously, I cannot believe this discussion for who's the best broker.
As option brokers, TOS, IB, OX, TK, OH know what they are doing. And if you trade a few options here and there they will all do. If you trade large lot sizes OH is certainly the best commission deal. OX has some pretty nice tools, Dragon, etc. TK, has nice basic tools and risk graphs. But IB, charging for trade cancellations, that is simply BS. To actually trade daily, and monitor positions in real-time. Come on boys... ThinkorSwim's think desktop is really the only "Best".
The speed and flexibility of the platform cannot be matched by any web-based platform, even TOS's own web-based platform.
Quickly customizing views to see Prob of touching/expiring, delta, IV,etc of the entire chain in multiple series at the same time. One click to see pricing of Verticals, Calendars, Fly's, Iron Condor's, etc. And then one click more to see and adjust the risk graphs, quickly do Vol crush tests on each leg. Come on now... And all-the-while the new trader can simple click an enter a put or call.
Personally, I prefer to use 1&2-lots for price discovery, so OH isn't the best for me, if I am only using one broker. Then when I get my price I can quickly reload and spread my subsequent orders through multiple accts at the same time.
Also being able to beta-weight my portfolio to the SPY (or any other index) in multiple categories is invaluable for me to keep track of my portfolio greeks in one acct or all of them. And I know my risk throughout the day.
Bearhawk, you can detach news, charts, alerts, orders, etc from the platform and drag it to different parts of your desktop.
I have been holding back from posting, but I couldn't stand it any longer.