avoid kingston for real. choose other.

samsung 850 evo 250gb.

before samsung magician, i use manual optimizations for quite some time. to me i'm ok with maximum optimizations, so i just choose max reliability. (with 15% OP, over provisioning)
yeah liteon s900 is still one of the best deals to me. the thing is that it seems to become rare in the market (256gb option), and there are people who sell liteon ssd models that are non-s900. i'm not sure about galax gamer. i suggest 850 evo because of its longer warranty period (5 yrs; normally 3 yrs) and tbw (150tb; normally 72tbw for mainstream ssds), and its rapid mode if you have more than 8gb of system ram. recently i also noticed there was a price drop compared to a few months ago.

another option is samsung 750evo. however there is only one capacity now, 120gb. also, be sure to check out garage sales section. there are good deals from time to time.

edit: i forgot to correct this: transcend ssd370 is an old model which used plastic case. ssd370s is the new model with aluminum case.