Corsair Force is second generation Sandforce. Force is basically identical to Agility 3, Force GS is basically identical to Vertex 3 MAXIOPS, and Force GT is basically identical to Vertex 3 IIRC. There's no need to add data for models that have identical performance to other models once it is proven that they have identical performance.
If you want a recommendation, then I recommend avoiding SandForce based drives. Go for something with either a Samsung or Marvel controller or such (Samsung SSDs, OCZ Vertex 4, OCZ Agility 4, Crucial M4, Plextor SSDs, and maybe a few others that I'm forgetting). OCZ Vector, Corsair Neutron, and Corsair Neutron GTX are also great. Just go for one of these that is the cheapest for the capacity that you want in your country.
Also, the difference between OCZ Vertex and OCZ Agility is the NAND flash interface. Agility uses asynchronous flash and Vertex uses synchronous flash. Synchronous flash is generally faster, although by how much varies. Then the Vertex MAXIOPS and a few other drives use something else called Toggle mode DDR flash and it is a little bit faster than Synchronous, but not as much faster as Synchronous is compared to asynchronous.
SSDs have been around for several years and the technology is more than twenty years old. They're not new at all. Those that I listed in the second paragraph of this post are all very reliable SSD families and/or brands.
Rated performance for most SSDs is generally not very accurate, especially in the case of SandForce SSDs where they can only get anywhere near their rated speeds in specific types of workloads (IE those using data that is easily compressed significantly by Sandforce compression). This compression weakness is not shared by any of the SSDs that I listed in my second paragraph.
Don't worry about not having SATA 6Gb/s. It usually isn't a big deal to not have it and isn't likely to hurt your experience with modern SSDs much if at all.