Program keys: VVDI2 via OBD, Tango from dump
If you are going to make keys from dump and reading with a programmer buy Tango.
If you are looking to make keys over OBD buy VVDI2 is a good tool for BMW CAS/MB EZS. (read and write MB IR key)
Tango more features, VVDI2 good for OBD
Better buy VVDI2 with VVDI Prog
I personally prefer Tango good support and more features, xhorse it is also a very good for obd.
If you buy VVDI2 i also recommend complement with VVDI programmer.
Tango has guides with pics, free with standard tool
I don’t know VVDI2... but I have tango and it's excellent so long as you have good programmers too like xprog etc. Most makes/models have guides with pics. Also many makers are free with standard tool and you can just add when you need
VVDI2 + Tango better than Zed full
If you mean original Tango and VVDI2 full...than this group will be better than zed full, thats my opinion...but there is a lot of car that you will need to remove BCM's, immo's...etc because vvdi2 and tango are more eeprom based tools, except vvdi2 making bmw and vag over obd2, skp900 and obdstar are obd2 tools but cant help you with fiat, opel, renault and with some few brands
VVDI2 + VVDI Prog good for VAG + BMW
If you looking only for VAG + BMW , then VVDI2 and VVDI prog is way to go. No need any other tool. In VVDI2 you have also programmer similar to Tango that you can make keys buy dump, but 90% of VAG and BMW can be done by OBD in VVDI2.
VVDI2 = VVDI + Tango + ...
VVDI 2 includes all the VVDI functions, the function of Tango.... has improved remote control generation and chip identification, and also enhanced the coil’s stability
Moreover, you don’t have to connect VVD2 with a computer or other devices to identify chip or detect remote frequently.
VVDI2 wins! Wins in OBD making keys! Wins in VAG + BMW key programming.