deciding on seeds

Hi, Im currently trying to decide which type of plant to go for. Im stuck between big bang by greenhouse and growing 1 or 2 at once or going for lowrider#2 and doing 10 at once

What do you think will be better for a newbie?

Also with the auto flowering strains do you use the 2700k light from day one as they flower so early or does the light type not matter because they flower automatically? And do you still need to do 12/12 with the lowrider, or can you use 24/7 with the red light as it will flower anyway?

thanks for any replies and sorry if these questions get asked alot