For a 5 - 10 gallon batch I think the IC chiller works best. Much easier to sanitize (just drop in boil last 10-20 minutes), and you can start cooling immediately at flame out.
My LHBS owner actually talked me out of a plate chiller because she said it was more hassle than improvement for batches < 10 gal.
I do 5-10 gal batches with a homemade IC on an ice water loop (submersible pond pump in an mash tun of ice water). This will get me to pitch temps in ~ 40 min. I'll run tap water through until I get to ~ 110F and then switch over to chilled water. I use the warm outlet tap water to wash down my equipment.
I can cut this time in half if I recirc the wort with my March pump, but its not necessary.