Word Search and crossword puzzles are similar, but they have different goals. Word searches, for example, focus on pattern recognition, while crossword puzzles are based on clues. Some clues are misleading and make it challenging to find the answer. This often results in second-guessing and a creative thinking process.
However, they are both fun to play and can be a great way to learn new words. For example if the answer is small business insurance - a crossword would probably be harder to get than a word search.