Guys

My OEM chain is on its way out. Signs of wear and there is a noticable tight spot when the rear wheel is off the ground during lubing. Sprockets are good but i think I am getting close to changing the lot to new. Couple of questions if I may:

1. Regarding removing the old chain is there a right and a wrong way?
2. Do the new chains come with a split link or do I need to invest in some kind of tool to close the new chain onto the bike?
3. Finally I have had a look through the posts in this part of the forum, does anyone know from experience what make to go for.

Thank you.