Google Forms

Pros

Everything. It hardly takes a few minutes to set up a basic Google Form. I have used it for various different use cases, ranging from quick polls in huge groups, deciding on a mutual time slot, to surveys and feedback. Google Form offers you a wide range of options for data validation and helps visualize the data collected.

Cons

It is difficult to show options based on conditioning. i.e, change the upcoming questions based on the answers selected by the user. According to my understanding, you can achieve this by creating sections, but I have not figured out how to do that efficiently yet.
In case you are looking for this, check out https://support.google.com/docs/answer/141062?hl=en

Pros

Google Forms lets you create forms, surveys as well as questionnaires in a swift and simplified manner without compromising on the granularity of customizations. In my experience, making forms and deploying them to more users has never been as efficient without Google Forms. It not only provides a variety of options to fine-tune the questions (as well as their expected responses) but also recognizes patterns within the body of the questions themselves and automatically suggests optimum parameters for the same. Furthermore, it provides multiple ways for users to share their forms to external channels and get responses fast. Upon receiving responses, it also allows form administrators to get a general view of the answers themselves and enable them to peruse individual responses as well.

Cons

Google Forms has become so deeply ingrained in my usual workflows that it has become a chore to switch to other surveying platforms whenever it becomes necessary to do so. Thus, there are no cons that I've personally faced in my experience with Google Forms.

Pros

Google Forms creation is super easy and fast. It takes less than 30mins to create a complex data collection form from our end users.

There are wide variety of question formats available which can suit any businesses of any size ( ours is a small startup)

Forms is also a free product from Google.

Cons

The export option is only CSV. I would like to have a easy way to extract data(certain fields) only instead of the entire zip of csv.

Also the way the answers are rendered ( in tabs for each question, was little confusing at first)

Pros

The most beneficial feature of Google Forms is its ability to automatically grade quizzes and populate Google Classroom with grades. I would not use Google Forms at all if it did not automatically grade. I also like the feature where I can edit the answers after students take the Quiz and it will change their grade. This saves me the time of changing all students grade if I made a mistake in the answer key.

Cons

1. I have learned that hard way that you MUST include a question with the students name and period, otherwise you won't be able to sort and find their responses.
2. I have to type every quiz and questions by hand. I realize that Google Forms has other purposes beside quizzes/ test for teachers, but it is far too time consuming now that we are juggling far more than we ever did. There are so many other programs that better suited for administering quizzes/ test with existing questions sets that can duplicated and not personally created.
3. The Locked Mode feature is great! BUT it will only work on Chromebooks. It is a completely useless feature now in virtual teaching because students are working on different devices.
4. This one may be user error, but I cannot easily share a Google Form to colleagues without adding them as collaborators. In doing so, I have to rely on them making a copy and not editing my original. When I send a Form via email, it sends the student view. Again, this may be something I am doing wrong but a better method is certainly not obvious.

Pros

1. It's free (at least for now) it has no limitation of "pro" / "premium" service, hence you can use it at the fullest without paying a dime
2. You can control what what the input. For example, you want short description text as the answer, or you want it as a full number. You can also have options to have checkboxes or single option.
3. This is the important thing. It's integrated with GOOGLE SHEET, so you get all your RAW DATA.
4. It has the summary of the result automatically if you don't want to go complex with Google Sheet.
5. It's connected to your Google Account! So you can access the data easily.

Cons

1. It's not as personalized as the similar service provider, Typeform that has the ability to customize the form, and have several "complex" logic. Such as, if you choose option A, then you'll next question will be B.
2. If you want to process the RAW data via Google Sheet, it requires you to understand the Google Sheet. However, if you can't, there is always READY TO USE result that you can use. It depends on your need. In my case, I usually need to manage & process it through Google Sheet. Don't worry, the easy option is always there.