The church in general should not be about "promoting" people. If you've got a really good vicar, it does not mean that he will be a very good bishop - they are totally different jobs. If you want to be promoted within the church it probably means you are not suited to the job, as Jesus' life was all about turning the world upside down (see Sermon on the Mount and washing the disciples feet).

If we do get women bishops, I would not be bothered in the slightest but many people will be and I think in general, not splitting the church is more preferable than some people's (male or female) selfish ambition.