It is...? Every time I looked this up, it said strawberries! Guess I gotta try this out.
Strawberries are very good too and may very well be better overall for g (lol I forget) but they need to be balanced with:
• Buying the seeds almost an entire year in advance, will your Farm be the same size in a year, bigger, smaller?
• Running Strawberries through a Seed Maker, lost profit on every one you process plus the time spent to seed them
I choose Rhubarb for simplicity if the Bus is fixed, or Cauliflower if I gotta slum it with Pierre:
• Single trip made the day you plant (or day before if you like for Rhubarb)
• Get the exact number of seeds you need
• Minimal planning ahead and especially for me, minimal forgetting
There are almost always "better" ways to make more g but for me that brings up a key point. If a common complaint is that there's not enough time in the game to do everything, then the focus should not be:
How do I make the most g with my time?
but instead:
How to make the most of my time?
IMO improving time use is making a little less g by choosing things with much smaller time burden. Don't try to compress your daily cycle to cram more things in, instead choose things that use less time so you're free to do other things you want to do. And if it takes a little more time to accumulate g, then that's a little more time you have to spend on other gameplay.
Seeding or planning a year ahead to optimize Strawberries is more work and as Farms change, can lead to more frustration. Rhubarb the day you need it is simple and easy. And it only needs 2 or 3 (with Deluxe Speed-Gro) harvests in Spring instead of 5 or 6. There's a new v1.6 enhancement that makes harvests quicker but you still need to plan for that Harvest every 3 or 4 days instead of every 9 or 13.
The same goes for other things as I've fully converted from Pigs to Sheep. Way less work and similar g as Cloth production has received a v1.6 buff. Even without this buff, I'd still be doing it this way for the reasons above, less time on farm means more time for other things. Same goes for Dinosaurs as selling the Eggs directly is still good g (but not best from the Coop) and time saved is more important.