Leave the analogies to me, Cunning is my goto solution because it applies to everyone. It's an item and not a ten levels long in a PrC that only 20% of classes can even enter.
There are several other less effective tactics, each one may be a weaker option into it's self, but as a whole they are better.
Dire Turtle prevents Surprise/Flat-Footed by giving you a surprise surprise round.MMII.
Contingency(X, if surprised or disabled or say "Stop!, hammer time") worksCore.
Being the first to detect them prevents surprise; Mindsight, polymorph-obtained blindsight, etcCore.
Not being detected prevents being surprised; (Greater) Invisibility, Disguise Self, Alter Self, etcCore.
Odd ball tactics like an Extraordinary Spell Aimed Flash Frost Antimagic Field which renders everyone else Flat-Footed if they lack 5 ranks in Balance as well as robs them of all spell buffs and magical items have just as much merit to them as well, especially if you're immune to ranged attacksCAr/FB.
Now, how many of those eat a 9th level spell slot every three hours? In fact, even with most CL shenanigans (meaning cl40 or so) still won't cut it and you'll be burning multiple 9th level slots per day on this ability that won't even last long enough to take a nap. Yes there is a power creep in books, but don't dismiss practical uses of better spells picking up the slack.