actully in lvl 1 to 50 dont matter at all what accesories you choose because they dont give you stats to make a diference, in thats lvls the most think you need is the best weapon and left gear you can get in dungeons or grand company and use sword and shield oath when you get it.

in lvl 50-60 yeah str can help you much more because accesories give you a good chunk of str, so for lvling dont matter what accesories you get, if you see vit or str take it both and have a mix of str or vit, or full str.

BUT the most importan think to keep agro is know your class, and pray high dps dont join to you party if you are 1º time with a tank class in neverreap or fractal and you are low geared ^^