For Europe - economy - fare basis and airline that best suits the needs of the business. In some cases that may mean Y availability is zero in which case club/biz. It may also mean Easyjet (with speedy boarding).

For ROW - WT+ or lowest biz fare available or one which suits the need of the business and fits the budget. BA J is used when fares are purchased far enough in advance to get best fares and for trips that are not required to be flexible. Again, it may also mean F or Y depending on the business needs.

Hotel, no budget restriction as it is location dependent, while $100 might be ok in Tulsa it will not work in Tokyo, but spend will need to be reasonable. Marriott is a favoured chain, although we have used everything from Four Seasons to Premiere Classe...

Car - midsized or bigger when more than 2 employees are travelling together.