Flatlander
Species Developer
PvP (Fun and Balanced!):
Lets be real you won't ever have balanced in a server, simply cuz there will always be someone to whine that their character is not strong enough, but yeah who doesn't want balanced fun pvp battles, imagine seaging castles against other alliances/teamsPvE (Hunting challenging monsters):
This is one of the most important points, in my opinion, if you get the players to do some interesting mechanics to kill a boss or even mini boss's you will get your players to enjoy the game so much more, since who doesn't want to kill a BAM(Big Ass Monster) with their friends;Perhpas Solo.Collecting Rares (Gatta love showing off items in your expensive house and having cool outfits!!):
Lets be real who dosn't want to have shiny shit to show your woman.Questing (I like to beat challenges and solve puzzles!):
In my humble opinion this go along with PvE hunting, but yeah doing puzzles its a good way to entertain good RPG players(Oh yeah this go well with Role Playing your other Point ) if you have good puzzles you most likely will have players interested in find out the solution Power Gaming (I want the be one of the highest levels! PG all Day!):
Bring it on! I'll be top
TL;DR
In reality if you wan't to have a susses full custom server (200 around Players[Lets be real Tibia is dying and OTs are run by RL servers]) you gotta do a mix of them all. you won't need to focus to much on botters since they will get bored, How so? since its a Custom server some of the better items will be found by doing puzzles/quest and they won't do em'.
Focus on PvE more than PvP but don't leave it just hanging. give hard quest quest that make your brain think harder, and reward the players for completing them, also for those HardCore PG make challenges, after 1,000,000,000 Monster killed give them some type of title. something that push them to keep on going
Thanks for your input
As for Balanced PvP, just because someone is whining, doesn't mean it isn't balanced. Players will ALWAYS complain about something, you just have to test it out yourself and you can use DPS Counters and other things to determine if it is balanced or not.