They're both fine pedals. ICJrs are single-chain, the 3000s are double chain, but both are well-made, dependable, and plenty adjustable. I own a 3002 double pedal and use it for gigs, hasn't failed me yet.
I have 3 DW7000's. This line got discontinued and was called "DW3000". I loved my DW7000's, but I got speed cobras instead. I would say whichever you like better. Ask to put them on a kit (if available) and play with both. If you want speed, go for the Cobras. If you want a harder hit, go for the DW's.