I found AmiKit a pain to install on a real Amiga and gave up. I do have some new instructions somewhere so I'm planning to give it another go.
ClassicWB for me was very straight forward, looks nice and responds fast even on lower end machines. I've used it on 68020, 68030 and 68040 machines as well as on my Minimig v1.1 (68000), Chameleon64 and FPGA Arcade.
Best of all, ClassicWB is already configured to use KillaGorilla's WHDLoad game & demo packs. Just copy the packs into the GAMES and then add the Kickstart ROMs into the folder.