I am getting to know more and more about this subject as you guys keep talking about it 
and
Yes Ali Tezel, I have already started to learn Houdini. am just doing basics of Houdini,
I’ve got all the required tuts for it, there are so many around.
Will hope to post something cool, very soon
thanx for all the replies
and keep this topic alive and continue posting more information
Houdini engine is only as good as the network that powers it, and afaik the beta was unstable as fuck (or maya was unstable, but that’s just normal)
Don’t expect to do the best sims with maya, at one point polys are the bottleneck.
I tried Fracturefx a while ago and i’ll just add to the pile, it’s very good, pretty hard to learn and not userfriendly (that was over 3 years ago, things might have changed), but nothing beats it in terms of realism (secondary, tertiary rule-based fractures)
Houdini is great on its own. If you can do all the sim and reimport a cache of it in maya, that’s your best option imo.
The answer here more and more is the DMM API engine. MPC has used it for years, Sony now uses it inside Houdini, and a few others that I know of are in testing and eval phases.
Unfortunately the plugin for Maya thats free has a tet limit on it that makes it difficult to gain a good working knowleadge of its behaviors and the Maya plugin is just a small part of what the DMM engine can do. The bigger houses using the DMM engine would have their own proprietary wraps to drive their destruction pipelines.
Its a good bet that if you show aptitude and skill in destruction it wont matter what package you made it in, you will be hired and trained in the proprietary software.
But really if you want Feature FX jobs, right now, you should know Houdini there are little to no Maya fx jobs in my experience.
good luck