Had a couple different routers since the first consumer wireless B routers appeared on the market untill the Linksys 54GL's came along, and had used that with DD-WRT for many years. In fact I still have it around for backup. When Fios came along, I used the Actiontek 424 rev D they provide for the first couple years or so due to the moca bridge. After ditching the cable boxes, even though I had ethernet WAN vs coax, I continued to use the Actiontek but with DD-WRT installed since I no longer needed the moca bridge, as it has better hardware specs compared to my 54GL. With DD-WRT, the Actiontek was very solid, just 100mb lan and wireless G which feels dated these days.
Recently, Belkin sharemax N300's popped up on slickdeals for $21 shipped with gigabit LAN, N, etc....which is also DD-WRT and Tomato capable, so I picked one of those up. Reviews are pretty bad with the default firmware, but the hardware is good and people who have mentioned flashing to alternative ROMS indicate the router is very stable with em, so for that kind of money, was def worth a shot even if it didnt pan out. Ran it with upgraded proper belkin firmware for about a week, and even at that it ran just fine for me, albeit with the typical limited settings compared to alternative firmwares. Finally got around to putting Tomato on it, and has been rock solid ever since. Totally happy with that purchase thus far. Deal is still going too if you are looking for a new router.