In real world every day use, you won't notice any difference. If it were me, I'd get the Kingston.
The price difference is huge, it made me think that it wasn't very good, considering the 240gb Kingston is only £5 more than the 120gb Samsung! I'll wait to see what some other people have to say before making my decision, it just seems such a good deal! (120gb is just too little for my needs)
I read the above link.I've no comparison, except from many many hdd's in general, but I've got the 60, 120 and 240Gb Kingston v300 ssd's in two, virtually identical machines. Both almost a year old. One is used heavily. I've had no issues with any of the drives. And compared to hdd's, their blisteringly fast.
Since we're (general public) still in the early days of solid state technology. The speeds and prices will change vastly for another few years. If budget is an issue, I'd not think of anything more expensive than the Kingston ssd's, especially if you have cloud and only a mid low range rig. Also, we've now got faster bandwidth motherboards. This again will up the speed game. If, like me you run two large (7990's) gpu cards in quadfire and if that's where a majority of your budget lies, Kingston is a good, solid, fast and affordable drive. Performance and reliability reports between Samsung and Kingston are marginal over the last 12 months, whereas the price isn't. On a lesser note, Kingston have won many awards for their drives. I'm sure this wasn't a fluke. Overall Samsung make the better driver. Again, this is marginal.
Like most things, it boils down to budget and whether you really need the extra speed and cost. If your run identical systems, side by side, you be hard pressed to noticed the difference in terms of speed.
I've been messing with and building computers for over 25 years now, and find reviews only help to a degree and find that quiet often, they can be wrong. Hands on living with the product (especially more than one of the same) and common sense is the only true way to know. I'd recommend a Kingston SSD v300 ssd all day.