Hi all,
For my point of view the best option platform is TOS, what a pitty that I'm living in a country in which it isn't possible to open a TD TOS account, although, I use a paper account to follow my trades with options, most of them hybrid (indices hedged with etfs), I don't know other options software that allows beta weighting and this is the reason to use this.
I have 2 brokerage accounts,
one is IB , not much to say about them, one of the best brokers, but his TWS is quite clunky in order to trade with options spreads, I'm starting to get used to ONE software which now allows to send orders to IB via API, could be a great improvement because I love ONE software.
the other is Tradestation, I opened the account to get familiar with the easy langauge and systems programming and the robust backtest utility, a little bit expensive but they are improving their optionstation platform quite a lot.
Regards and Happy New Year!