1- I give an edge on offense to the Lakers due to Howard being more productive than Ibaka. The only players who play quality defense on either team are Howard and Westbrook. Ibaka gambles on blocks too much and struggles against post up threats. Howard also has more of an impact on the defensive end than anyone else on either team.
2- Age and injury will be an issue for the Lakers. If they go into the playoffs a bit injured, their chances nose dive.
3- Nothing special, but better than the Lakers bench.
4- You mentioned the only players that are not garbage. They have Ebanks and Goudelock but they are bad players.
5- Mike Brown cannot design an offense to save his life. Brooks, either. They both rely on their best playmakers to go iso far too much. Brown is a better defensive coach and has slightly better adjustments. Brooks is able to get his team to listen to him. I don't like either coach, but Brown may be a smidgen better.
6- And don't forget Pau who, as the second best passer on the team, can also run the PnR well.
7- Maybe, but he is worse at FT than anyone the Thunder would throw out in a small ball lineup. Could be a liability late in close games.
I would favor the Lakers if healthy and if Kobe has learned to play with another ball-handler who is better at running the offense than him. Series should go at least 6 either way.