LEC Network Professionals: What are common ways to deliver an Ethernet circuit from a PoP to the customer?

Do you guys like run your own L2 (or L2 overlay) networks and basically give each circuit a VLAN? Do you mux/demux using technologies like WDM and PONs? Is it a mix of both? Is it something else altogether? Or do you pretty much just patch fiber and call it a day?

Also, does TDM/SONET still come into play? If so, how?