Players who have the girl
I would say 10 tix should be the minimum for players who have the girl as that should be easy to do while doing the dailies.
I don't like using champions for a gauge as that has too many variables, a straight target by CC level would seem to be a fairer idea.
Players who aren't interested
1 ticket per fight
I blew hot and cold on it, but did at least 1 ticket for most of the fights. Partly because the early levels were being knocked out too quickly meaning I missed some to the easiest fights, hopefully this will be less of a problem in the future as the heavier hitters are being more restrained.
Start Time
If you are going to think about the when to start the champ I would suggest as Europe/Asia are the weakest the end time is such that it is a convenient time for the Americas. I had to finish the champ one time as no one else seemed to be hitting it (late morning Europe), luckily 10ish hits was enough so it wasn't too expensive.
CC Matches
Put the fight/no fight criterion in the spreadsheet so the is no debate about what happens. Revise it as need be towards the end of the month. I started hitting in the last contest as I expected the 2 match to be a go. I was using the app for part of the time and it was a while before I saw the debate.
Challenging the champion
The champion needs to be challenged to start the timer so I don't see much point in having designated challengers. As long as the CC rules are clear players wasting tickets on fights is down to them.
Player ejections
Is it worth keeping below average level players if there are vacancies to lower the Champions level even if they are not contributing? Current average is around 310 so below that they only get booted when the club is full. Above average get booted as now.
Rules/Guidelines
Put them in one place so they are easily accessible eg the spreadsheet.