Which Debugger would be a better option over AVR Dragon?

THis one:

http://www.ebay.com/itm/AVR-USB-Emulator-debugger-programmer-JTAG-ICE-for-Atmel-/251151298467?pt=LH_DefaultDomain_0&hash=item3a79c8afa3

Or this one:

http://www.ebay.com/itm/AVR-JTAG-AVR-USB-Emulator-Simulator-Debugger-Programmer-JTAG-ICE-for-Atmel-/160799194956?pt=LH_DefaultDomain_0&hash=item257060ff4c

And if neither any suggestions other than AVR Dragon unless that is the only real good would which would be more economical over Atmel other More Expensive ones!!

Maybe something like this one with more support for xmega etc?

http://www.ebay.com/itm/Olimex-AVR-ISP-MK2-atmel-AVR-ISP-MKII-MK2-programmer-/280991677759?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item416c68bd3f