Plaguescarred
Hero
We like 3d6 reroll 1s for our group. While it still use the 3d6, rerolling 1s ensure no score can be below 6. It generally gives slightly weaker arrays than 4d6 but ensures higher minimum while keeping the same maximum range.
You have to let players rearrange scores anyway
If it's that important to the campaign, why not just remove chance from the equation and assign an array in the range you find reasonable? Maybe 14-13-11-10-8-6?
You have to let players rearrange scores anyway, if you want them to be able to choose their class before rolling, and the statistical difference between dice-and-a-swap isn't going to be all that different from just letting them assign the array.
This will avoid the situation where one player rolls very poorly and another rolls super high -- something that ALWAYS happens, in my experience. The player with negative stat mods in all but his primary is not going to have much fun, no matter how many awesome stories you tell him about that time you had a Strength of 4.
I made a mistake back up the thread, but it may prove productive. 72 is the typical sum from 3d6 twelve times keep six. 63 is of course that from 3d6 six times straight. My general comment stands I think. But the difference between 3d6x12 and 4d6x6 is the former is slightly lower on average and lets in more 3s. So why not that (3d6 twelve times keep six) or a simple variant - 3d6 straight on each stat and an extra time keeping the best on your two class stats?[MENTION=63913]Boarstorm[/MENTION] pretty replied to my concerns, but I'd add that I do not wish to prevent PCs from having scores above 14 and consequently assigning an array with 14 being the top score is not my intent. If someone rolls an 18, good for him! Secondly, having PCs with different highest scores is also somethign that I see as desirable. So again, putting everyone on equal footing by assigning arrays that all include 14 as highest score, putting everyone on equal footing, is not my intent.