Favorite dual pedals?

In college (late 90s) my roommate had a DigiTech PDS 2730 HotBox. He played a PRS into a MESA head and 4x12. I had a Samick KJ-560 and a Crate GX-212 combo with maybe a Metal Zone and a Vox wah. I'd seen and used multi-effects (had a Zoom 9000 for a while), but never something like this before at the time. I remember thinking it was amazing. There are a bazillion great dual overdrive/boost, and delay plus reverb is another popular combination. What are some other dual-effect pedals people are using or have their eyes on?