This might depend more on how much influence your players will want over the outcome of the campaign.
Yes, very good point, Mark, I should have specified in my OP. As dd.stevenson put it in the post immediately following yours (and with a nod to Mal Renolds), I'd like the PCs to be the Big Damn Heroes, always with some "narrative goodness." I'm not interested in "sandboxy kingdom building" though the idea of "little people trying to push back against the shadow in the wilderness" has a good bit of appeal too.
To S'mon and Razjah, who recommended the Third Age, my chief concern is how the established events of Tolkien's Legendarium may limit the PCs (unless I resort to letting the PCs change canon, which will mean more work for me and fewer touchstones for everyone)...although:
3d Age pre-Hobbit if you want something more grim, but the "ending" remains relatively fixed.
I'd prefer th[is], personally ... Rangers against Angmar, for example, or the dwarf wars at Moria after the fall of Erebor.
I must admit, Olgar, you do make the era sound appealing here.
...First and Second Ages would both be rather poor choices, because you've got evil god-like beings ruling over the entire setting, who would more than likely crush the PCs before long.
Very good point, Orlus, and one I hadn't considered. Yeah, I'm not so sure I want my PCs to feel like little fish in a big pond.
I want to see the game notes for [RobShanti's d20 Modern urban fantasy game set in Tolkien's 7th Age].
I will dig them up this afternoon and post them in a dedicated thread to these forums for your amusement, Achan.
That [d20 Modern game] sounds awesome. How did you avoid turning the setting into a shadowrunny dystopia?
Well, I didn't...except to the extent that the dystopia was a present-time dystopia, rather than a futuristic one. The game was to culminate with the Dagor Dathorath, the End of Days. Unfortunately, we never got to finish it.
I recommend the Fourth Age. There are quite a few solid reasons to do so, but it's a lot of material. I hope it's OK to mention a
blog post where I dusted off that material.
HOLY CRAP! Not only is it okay, Colonel, your blog post sealed the deal for me. I think I will go with a Fourth Age game, and, if YOU don't mind, use your blog post as my campaign outline! That was AWESOME. Thank you for writing that!