I personally wouldn't get the Logitech Flight System G940 just from looking at it, main problem I have with it over the X52 is the throttle, doesn't look like a very ergonomic design and got quite a lack of buttons, although the buttons on the base of the throttle could be useful but doubt they would get used much. The stick also doesn't look very ergonomic either... One thing that worries me about buttons on dual throttles like this is how do you use them when the throttles are not in line, you can't can't sit compatibly on both of them without them being in-line? Never used a dual throttle like that thou so can't say for sure.
The Thrustmaster Hotas Cougar looks very plain and simple, although better ergonomics but I wouldn't say it rivalled the X52s either.
The Thrustmaster Hotas Warthog dose looks pretty good, I know Stigger has one of these and loves it. Again thou it has the dual throttle which I can't see how you can really use the buttons on it while you have the engines at different revs and again the throttle itself doesn't look like a very ergonomic design. But all the cool and realistic switches and lights on the base of the throttle makes up for that
The stick although somewhat simple design looks very good, and from what Stigger tells me is very heavy, which is one of the X52's biggest flaws is its stick is so light that you have to push it downwards when using it in order to ensure it doesn't come up and off form the desk... Also really good for custom builds this, seen people make nice home cockpits with it
Not sure I would get one myself thou, price is very high and I think I would miss a lot of the X52's neat little features
There is also the Saitek X-65F, which dose look very good: X-65F Combat Control System - Pro Flight Simulator Controller for PC | Saitek.com
Again my biggest worry with it is the dual throttle and since the throttle is heavily laden with buttons, how do you use it comfortably when setting the throttles at different revs?
It also has "FORCE SENSING" which is one of the biggest reasons why I would consider it. Force Sensing is basically means that the "stick does not move; instead, like those found in real modern fighter jets, it responds to pressure that you exert on the handle, resulting in a fast, accurate and realistic response. With no moving parts and a shaft that is made from high grade steel, this provides incredible reliability and longevity." The biggest reason I would get this is due to reliability and how long the product should last for, as one of the other big flaws with the X52 is that one day its moving parts will ware out and not something you want from something you've spent a lot of money on. That being said my X52 is still going strong after many years now, think its about 4, maybe more and the only thing to go so far is the trigger button (luckily the x52 has a 2 stage trigger so I'm just using the 2nd stage as my trigger button now, although could possibly repair it if I opened it up but don't want to risk it quite yet).
But again its a very high price...
The stick however I would most likely get today, if my X-52 broke beyond repair, is the X-52 Pro (depending on the price, if I couldn't get a decent price I would most likely opt for an X-52 again). Although this has the same weight flaw as the X-52 stick as before, its got a few nice neat features extra and some of them could be useful, but mainly it looks better
It is also possible to get around the X-52's stick weight problem by screwing it down onto your desk, which there are a few ways in doing. If I was going to do it I would drill 2 holes into my desk, then have the pins sticking out of the bottom of the stick that then would fit into these holes when I want to fly, but personally I don't find the weight problem of the stick that much of an issue.
X52 Pro Flight System - Fully Integrated Stick and Throttle Flight Controller | Saitek.com
sry then in this case... xD ) here... -.- 
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