I am actually extremely happy with my SR5 4x4. While the Limited does have a more sophisticated suspension, primarily for on-road handling, the SR5 is vary capable. I thoroughly enjoy driving mine.
It depends on your use and your preferences...and how much your wallet can take.
I like SR5 quite a bit..I have not driven a trail or a limited.... and I have to admit that the car does "nose dive" but no big deal...I mean it depends on how picky you are about these details. The sr5 comes with cooler wheels any ways
In the end it comes down to what you can afford.....I myself would have loved getting a trail but did not feel the need to go above 34 K into the 40 K regime (plus it does not have a third row option which was a deal breaker fro me). The SR5 (4x4) is the best bang for the buck so to speak. So if you care about cost then the sr5 is a better option.
And as said above, looking long term, looks like the sr5 is more suspension customizable than the limited... so if you intend to use it off road...get the sr5...to bad they did not make a manual tranny SR5..that would have kicked serious ass...
In a nut shell, if you are going to spend the money on the limited and do not want a third row seat: get the Trail...its a much more capable car than the limited. Plus its a part time 4x4, and you can get the crawl control stuff water proof seats..and the better rack.... just my 2c.