Full-fuel useful load is much better in the CL300 than the G200.
As to performance...Bombardier advertises 3100nm @ 0.80M with eight passengers while Gulfstream says the G200 will go 3400nm @ 0.75M with four passengers...or 3050nm @ 0.80M with again, just four passengers. Takeoff distance @ MTOW & ISA for the G200 is 6080ft, while the CL30 is 4810ft.
Conferring with pilots who have flown both airframes, they always prefer the CL300 while their pax tend to prefer the cabin of the G200.
As to pricing...sure seems Falcon 2000s of similar age have held their values MUCH better than the G200 in a down market, even with the successor 2000EX/LX variants.