Advise on Strains

Hey guys, i will be growing in a large room in my apartment, (big grow op 20 plants) im now in the process choosing what seeds to buy, and i want to make the right choice (i want to beat the competition by having the strongest and tastiest strain)

Iv been looking at cannabis-seed-bank.co.uk and have found 3 strains that tickle my fancy but i can only choose 2. Preferably 1 indica and 1 sativa.

So i need to choose between these 3 strains
1.)ALASKAN ICE SATIVA $23.99 ("strongest THC recording")

2.)Super lemon Haze @ 21%THC $29.99 SATIVA

3.)Violator Kush @22%THC $39.99 INDICA

which 2 of these 3 would you choose, or can you recomend a potent Sativa and indica strain?

Thanks in Advance
Suka

im not to sure but i think alot of people have probs with alaskan ice not sure could be wrong! ive a lemon skunk going from green house nice plant no probs with it so far!