I think the SB12 is one of the best in your list. With a 12inch driver it has more potential to deliver decent deep bass than those with smaller drivers. This would be my first choice because of my familiarity with the brand and the excellent service AV-Sales provide.
It would also be a significant step up from my next choice, the XLS200. I wouldn't worry about wandering fingers, just keep the cover on the front and apply a bit of discipline. Failing that turn it on full blast when the little tyke gets too close, they won't go near again, i have kids, I know
If you have read the various posts here you will know already these 2 are VFM favourites and performe fantastically for the money, you can't go wrong

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