I started out with Fescue "Elijah Blue". I grew a mess of these little blue tufts from seed and have been really happy with them. I planted them in a bed that gets sucked dry each year by a large greedy Douglas Fir. No matter how much I water and how much I fertilize this bed, it still ends up a bit dry and infertile.
The fescue has done wonderfully there with little or no care. Most years I've cut back the flowers and seed heads before the birds could get at them but this year they were beginning to look scraggly and so I sheared them back in February. By April they were already starting to look marvelous and a rich blue again.
The other grass I've fallen in love with is Carex flagellifera 'Auburn'. This is a wonderful bronze sedge that doesn't need a lot of water and will grow in part shade to full sun.
I grew a number of these from seed and planted them out in the spring of 2007. At this point some of them are HUGE while others are nice little tufts. The difference? How much sun they get and how fertile the soil.
This guy is in full sun and is thriving on horse-manure enriched topsoil.
The little ones are in part shade growing in a little compost on a rocky hill.