Formal:
* J'aime les raisins et les fraises. (This is the most literal translation and is perfectly correct.)
Informal:
* J'adore les raisins et les fraises. (This emphasizes liking them a lot)
* Je kiffe les raisins et les fraises. (This is very informal and slangy, similar to "I love" in English)
* J'aime bien les raisins et les fraises. (This is a softer way to say "I like" and is more common in everyday speech)
The best choice will depend on the context and who you are talking to.