KTF tour started at the beginning of February ended feew days before Christmas in 1993 and they did, North America and Europe twice (if we count it together with Sleep When I'm Dead tour) plus Japan, South America, Australia.

Crossroad tour started in April in India and ended at the beginning od December in Africa. They did Europe and North America just once but they did several shows in Asia and in Africa along with Japan, South America and Australia. They did big stadiums everywhere apart from North America and it was really a World tour.

So, KTF tour was longer but I would consider Crossroad tour bigger