1) The real life 'speed' difference between the current Intel X-25 drives and the faster SandForce based drives is nowhere as significant as it looks on paper
2) The X-25 is probably the most reliable SSD on the market, and surely is the most time-tested and proven
3) The Vertex line has nowhere near the reliability of the X-25
4) The upcoming Intel drives will IIRC be faster, but fast is not the goal, as it is trying to bring the price down (IIRC G3 will be about the same are current SandForce driven models in read, and slightly slower in write speeds)
You really cannot go wrong with the Intel X-25. It is a great SSD and your odds of having any complications with it are smaller than other SSDs. You won't really get better in the reliability sense, and wear-leveling issues are dramatically overstated. The only real difference between the X-25 and other drives is theoretical speed. In terms of impact resistance, latency, power consumption, and resistance to the elements, all SSDs are rather close in other than for the purpose of playing benchmark wars, the differences are probably negligible. Certain Kingston models are Intel X-25's rebranded and you can sometimes find them for less. I've been playing around with a few SSDs of differently rated speeds and thus far, the differences I have found have been far smaller than the benchmark stats would suggest.
If you want the fastest drives, the Vertex 2 line and OWC Mercury Pro Extreme is probably the fastest. It's worth noting that the Crucial C300, despite being rated lower, is probably even faster than the above. Once again, the tasks done by average users, however, is not going to max out a SSD (usually) and individual differences are smaller than paper stats reflect.