NS are clearly the more accessable dual purpose team. Revan Jedi are superior in arena and are nearly as good for STR. But they can only shine with Revan. Without they won't bring you really good arena ranks or raid scores anywhere near what NS can do. So...if you are near Revan, go for him. If not, go NS and go for next Revan after NS. JTR and BH won't bring you nearly as far as the other options are capable of. Keep in mind: Your guild will need a solid mix of all those teams to succeed. You won't beat HSTR with 50 NS Teams and nothing else.