Before you start growing you have to decide where you will grow. some strains flourish indoors while others need a sunny outdoor climate.
You may be growing for a specific reason. Do you have one?
Some plants flower faster then others. This does not mean one is better than other. but you might have a preference.
Autoflowers are a type of plant that can be grown all year round. They grow independent from a light cycle and have a set grow period engrained in their DNA. This makes them very easy to grow. They are quite a bit smaller than non-autoflowering plants, so they yield a bit less.