Hello @MonikaMajor -
So we migrated from Moodle to Canvas back in January of 2021 and I had to make a similar decision.
With my timeline New Quizzes was still very much under development and thankfully within a semester or two we started to see dramatic improvements in New Quizzes but at the time we thought Classic quizzes was going away in the next year or so - that timeline was clearly changed. But I didn't want to migrate us from one platform (Examsoft/Moodle) to another (Classic) and then do it all over again in a year/18 months (New Quizzes) if I could avoid it.
At the time with the information we had, we made the decision to go as all in on New Quizzes as we could and focused heavily on teaching New Quizzes and only teaching Classic Quizzes as needed for those that had feature needs that were only possible in Classic. My world is a bit different since I have a variety of healthcare programs and we were able to target specific programs and only teach New Quizzes to those programs who that would fit their need and Classic to those that needed some of those classic features - the main one being the ability to download a csv of the data.
In time we have fully pushed all our people over towards New Quizzes and since it has had the improvements it has, I know that if I was making this decision today, I would ONLY be teaching New Quizzes - having to support both was a headache I would love to go back in time to prevent. Even for allowing small pockets to use it - I wish I had pushed harder to get them into New Quizzes from the start.
At this point most of the features needed are now in New Quizzes - while there are still quirks and frustrations at times (images.... just images... why are they always breaking) it still is less of one then trying to teach both. Some of the big issues have been solved - like the delayed reporting - this was the one my people were most often most annoyed by and were very vocal about. And the benefits are better - New Quizzes has more modern question types, reporting is more on demand now, moderation works more smoothly and remembers the whole course, item banks and outcomes are awesome once you figure those out, etc. Also, from just a UI standpoint teaching New Quizzes is smoother - its user friendly and auto saves. I can't tell you how many people were mad at Canvas when first learning in back when Classic was the only (or main) option, and they would forget to save and lose their work - this was ALWAYS a big hurdle especially as more people are using more tools that do autosave. Plus, question banks and groups in Classic was also a huge pain to teach just so the questions could be randomized - this is one click in New Quizzes. There are other features built into New Quizzes that were not even dreamed of in Classic - build upon last attempt, the cooling off period between attempts, and even just how you set extra attempts are all easier to manage (or just possible) within New - even the options on what students can and cannot see in New Quizzes are better than what Classic offered ( thought I do want them to make it so we can select only certain students to see feedback or set a specific window - but there are work arounds that suffice)
So based on all of that and my experience of teaching many people many different technology platforms over the years - I would focus on the future and at least heavily focus on New Quizzes 🙂 Hope this helps!