Luk Nuts, I'm not really sure why you are asking, but others have provided good answers. Arnold Snyder wrote a book on tournaments, and it included a spreadsheet for how to evaluate tournaments and can be used to create tournaments. While I've not read the book, I think his theory is very good. He basically broke tournaments down to 6 skill levels and a patience factor (PF). PF is based on how long it would take a player who never plays a hand to bust out. As a general rule, I think those are excellent ways to determine how one tournament compares to the other. The weakness I see in his formula is that once a player has busted out, you can put anything in -- blinds tripling every hand for example, and it doesn't change his evaluation. In other words, he evaluates only to that point in his formula.
His formula is great for helping you identify a tournament that is a luck fest from one that will require a fair amount of skill to win.
While there is an option for a re-buy in his formula, it assumes only one re-buy. I think his formula works better on a freeze out tournament evaluation, but I think re-buy tournaments can be very hard to evaluate since if the re-buys are unlimited, you have no real idea of how many there will be, though you might be able to make intelligent guesses.
I used to play in a game that allowed one re-buy or add-on, but if you added on, it was at a specific point in the game. To evaluate that game, I'd see how many BB were added if you didn't bust out sooner, and add that to the starting number. It's not perfect, but it seemed to be workable.
Someone on another site posted his spreadsheet. I've added some of BG's stuff to it and some of my own to it. I use it to decide whether I will even play in a tournament someone else is running. I use it to help structure a tournament I'm going to run.
Most of the tournaments I run are designed for 4 hours and 30 people (3 tables) or less. I usually use 20 min blinds (which is fast in my opinion). I like deep stacks (min of 150 BB to start, but prefer 200 or more). I don't like doubling blinds except the first one since we start at 25/50 and got to 50/100. Some don't like that, but for a home tournament, what I like about it is it rewards those who start on time. If you show up after the first round, your stack is effectively cut in half. We usually start with 400-500 BB, so it's still deep stacked.
There are a lot of ways to design a tournament that emphasizes skill. At some point, every tournament becomes a luck fest because the blinds do keep going up. The key is to determine how much skill is required to that point.
Our own group likes deep stack tournaments and 4 hours. They prefer to see the blinds double sometimes rather than cut back on the starting stacks. Since I know players have other options, I've accommodated that, even though if there were no other games around, I would do things a little different.
Anyone who would like a copy of what I did can PM me and provide your email address and I'll send it. Give me a few days as I'm on vacation and might not be able to send it immediately. It will include structures of several games I've either played in, considered playing in, or designed for specific situations. You can experiment with various structures to see how it affects everything I could think of to measure.