Solid fuel stoves are handy on a day walk, They are quick and easy to light and may take a long time to boil water or cook a meal. Gas stoves in particularly the resealable canister type are quick, easy to use, can be taken apart for better storage. One draw back is that you might have to take 2 canisters with you on a long walk. The resealable one's can also run a small gas light. In colder conditions the right gas mix must be used or the stove won't work.
Alcohol stoves are the widest used stove on extended walks.
They normally contain a complete cook set which makes them large, and they are easy to maintain. Methylated sprits is widely available, a safe fuel to use, dries without a smell or taste when spilt. One drawback is that you tend to need more fuel than a shellite stove, and need to take more. Apparently if a small quantity of water is added, it reduces the blackening of the cook sets. Kerosene stoves are somewhat outdated and bulky .