Activity.
You can have the most awesome pride ever with thousands of members. But if only 3 of them are active, you'd might as well not have a pride. A good pride, a successful pride has caring and loyal members who are not only active in role-play, but active in the dirty work as well. A lot goes into organizing story-lines for a pride based role-play. And if your members don't apply themselves to helping it come to fruition, they aren't truly active.
Alignment.
A pride should know where it stands int he world. Good, evil, neutral. And various forms there of. A pride that wavers from one alignment to the next isn't a solid pride. If it can't make up it's mind now, how will it make up it's mind later? Without a solid alignment, alliances won't form. Pride to pride interactions will be muddled. And eventually, players may take the pride just as unseriously as it takes it's alignments.
Leadership
A strong leader, or pair of leaders, leads itself well to a strong pride. A leader should be ready to take on the tasks required to keep a pride active and role-play engaging. Leaders should be sympathetic to the life needs of their members but still hold a firm ground when their rules get broken.
Respect
The members of a pride need to have respect for one another. As players. Characters have nothing to do with this. If your members don't respect you, you'll find yourself with a very inactive group. Adversely, if you don't respect them, you can also end up watching them drift away. These are real people behind those characters. Treat them as such.
Members
You just can't have a pride without members. lol
Role-play, role-play, role-play
Never abandon character. The moment you meet-up, drop the OOC. You'll get more done, and your members will boast more fun this way. It also helps weed out those that will drag your pride down.
Interaction with non-members.
This is by far the biggest. The most successful prides to ever grace Impressive Title were the prides that went out of their comfort zone and interacted with non-pride members and other prides. They pillaged maps, chased down sworn enemies in public, cub-napped, and held glorious battles. They were, and still are a prime example of a good, successful (and pretty dang awesome) pride.
