dunno really.
to some extent, the people who want to be an MP (or whatever) are in most cases the people who really shouldn't be allowed to be an MP (or whatever)
the current UK house of lords is an absolute bloody nonsense and should be abolished, preferably along with the monarchy.
but what would be better?
another lot of politicians elected at the same time on the same basis as MP's, and creating something that's going to have broadly the same political make up as the commons would be pointless.
intentionally electing the second chamber at 'mid term' of the commons, when people are going to be most likely to be pissed off with the government of the day will result in half the time the two chambers are likely to be at odds with each other and trying to block each other.
i can see the attractions of making it more like jury service, but can't help thinking a heck of a lot of people will not want to do it (like jury service only more so), and it would end up with a mix of retired people / seriously unemployed people / cranks. and something where people are forced to be there would not be constructive.
something elected on a form of PR has some attractions, but many forms of PR put too much power in party central offices to draw up a party list, and works against independent candidates, so would it (still) end up with a mix of has-beens and big donors? party list type PR fails the fifth of tony benn's
five essential questions of democracy - "How do we get rid of you?"
having church of england bishops in there is ludicrous. gut feeling is no religious appointees at all, second best would be nominees from all religions / denominations with over X number of adherants, with number of seats / votes in proportion. although that leaves atheists out. but could be entertaining if more people start stating they are jedi or pastafarian or followers of ceiling cat come the next census.
germany's second chamber is delegates from the state / regional tier of government - which is a tier we don't really have in the UK now that many places don't have county councils any more, but wonder if that wouldn't be that bad an option.