My table is the cast iron Bench Dog ProMax RT sitting on a Rockler stand with an Incra/jessem Router lift. Then.....I got (long stry, will tell in another post) an Incra Jig Ultra (the predecessor to the LS Positioner) and realize that the table will not work well with this tool because there is not enough clear area behind the router to place the jig.
So, my suggestion is this - if you are wanting a store bought model, you'll have to decide if you'll be using a jig similar to the LS Positioner or not. If yes, then you'll need an offset table (Incra sells them - or look on ebay or Craigs List for an older Woodpecker unit). These, from what I have found, are either phenolic or MDF - no cast iron.
If, on the other hand, you will not be using a jig like the LS Positioner, but instead a simple or complex fence that simply connects to the table, then I highly recommend the Bench Dog proMax RT. It is FLAT FLAT FLAT and will not sag over time of if you install a 400 HP (kidding) router. I'm not yet allowed to send pictures, but when I get there, I'll insert a picture or two of the rig I set up.
The above is just my 2 cents worth. Good luck.