Attribution (BY), which is the condition of appropriate authorship and rights indication, is an obligatory component of all licences. Hence, the CC BY licence is the most basic licence and the starting point, so to speak. If this condition is sufficient for you and you do not want any further restrictions on use from the very start—which is recommended for open access—then choose the CC BY licence. Otherwise, you should specifically check which uses you want to allow or restrict according to the licences. If you want to restrict certain uses, however, you should look carefully and know what this means and what the consequences are.