I hate this change.
This is a game. For a feature in a game to be good, it has to:
1) be interesting or
2) be fulfilling/make you feel like you accomplished something or
3) give rewards help support some other part of the game that is interesting and/or fulfilling
This utterly fails on all 3.
Randomly clicking a button every 4 hours is not interesting. There is no strategy. You can't plan or run the odds. You can't react to what armies your opponent has chosen. You can barely chose your opponent. Paying a few dollars to click a few extra times doesn't make this more interesting.
Winning can be fulfilling. It used to be that everybody had a chance to be in first place of at least their age PvP tower. Now, realistically, only someone who buys diamonds AND is on multiple times every day AND is in a high age has a chance of being in first place. For everybody else, the new system CANNOT be fulfilling in this way. There have been times in this game where I've worked to win that week's PvP tower. Sometimes I did, sometimes I didn't, but it was a fulfilling goal. Making matters worse is the pay-to-win. Even if I were in a high age, I can't image being able to win without the extra fights that money spenders will have.
At this point, for me (and for many others I'm sure), building stuff is the main fulfillment: building new buildings, leveling up my GBs, etc. Supporting my guild is also fulfilling.
Some elements of the game aren't interesting and aren't fulfilling, but at least give rewards that fit that. This past soccer event was an example of that. I found the game play annoying (I hate being forced to sign in multiple times a day), but put up with it because I wanted the reward (on my main world, I missed it on beta). However, the rewards in the new pvp thing SUCK compared to how much time and troop loss it takes to participate.
On Beta, I'm in EMA. I still haven't finished my medal expansions, so winning medals is valuable. Even doing every fight that becomes available, I'm still in the 1000+ rank category because I can only do "easy" (since the others are MUCH higher ages than me). I will likely win 1 units (I usually get at least a few from GE), the 'reward' chest (20% of getting 10 FPs, 20% of getting a little bit of auction money), and 8 medals. I sometimes get 10 medals when I click a random tree in the forest. I can get 27 medals anytime I want from the unbirthday recurring quest, a number that will only grow as my CF levels up further.
On my main world, this will be EVEN WORSE, since I'm already done with medal expansions. Getting 1 unit, and the crappy reward chest are NO WHERE NEAR enough reward to justify the time, annoyance, and troop loss that this will take.
Contrast this with GbG:
It is fulfilling - it lets you build new things, it lets you support your guild, it gives you a chance to win.
It is interesting - you can manual fight. You can negotiate. You can plan when to build buildings. You can target things. You can work with your guild to coordinate. There is a lot of strategy and tactics in play.
It is rewarding - give FPs, troops, goods, and auction house sellable items at a fast enough rate to be worth it.
Please get rid of PvP arena.
Edited: a few typos