What are your goals? What is your experience running games in the past? What kind of play do you and your friends enjoy?
For example, you could say, 'My players like sandbox play with a lot of weird characters. Are there any stories people recommend that would fit that?' or 'Does anyone have advice on running combat well in this system for someone who used used to combat in DnD 3.5?'
Otherwise it's really hard to give any kind of useful advice.
I'd like to introduce my players to a non-D&D setting/rule set in a way that's fun. My players typically enjoy combat-heavy games, where they are on the side of good. They've put some effort into role playing race (elf and dwarf) and class.
Can you suggest good short (10-20 hour) starter adventures/modules?
@sbv@andrewrgross DragonBane, the free Quickstart rules has pre-gens and an adventure.
The mechanics allow for some great combat.
If it works out, the core set contains a sandbox campaign, plus a lot more, which leads on from the Quickstart.