If you want a better brake I would go for water. From my experience water has been the best. It is more responcive then a oil bleed, And alot nicer.(My opion) Water bleed may break the seal's in your brake thow. But it is'nt very common of people doing that. My friend has had a water bleed for about 3 years now and nothing has gone wrong. Alot easier to bleed as well, Because they is like a 1/10,000 chance of getting air in your brake if you do a bath bleed, Which is also good. It is completly up to you what you do, But I would do a water bleed.