It depends upon the guild, my guild is pretty savvy with average or less battlers, but some of the ultra-competitive guilds can be the equivalent of a shark tank.
You usually battle within your own guild, when guild members from other guilds battle against one another they're called guild wars and the guild leaders/war captains choose who participates in the wars.
You usually battle within your own guild, when guild members from other guilds battle against one another they're called guild wars and the guild leaders/war captains choose who participates in the wars.