I had both but weather in MO is alot different than CA, and you probably wouldn't need a hardtop. I see people driving around in the summer with the hardtop on and wonder why even have a Jeep?
The good thing about hardtops are they are a little more protection and warmth in the winter, again probably not needed in your area. If you get snow, you can scrape the windows on a hardtop and wouldn't want to do that on a softtop. You can secure your vehicle better with a hardtop and hard doors than just a softtop.
The bad is they are bulky and heavy. I can lift mine on and off on my own, but its not a real smart thing to do. They take up alot of room in a garage unless you can store them outside which I can't do in my neighborhood. You can always build a storage dolly and store it vertically which is nice.
When I sold mine, I thought that I would never buy another hardtop but I found one really cheap. Its nice to have the choice between either a softtop or hardtop so it just comes down to do you really need one for your climate, can you find one for a good price, and can you store it out of the way when its off.
Another thing to think about with your bikini top and doors is a cab curtain. I have one for summer so I can run the ac and still have the back windows off the softopper but it would be just as good in the winter. Blocks all the wind that blows in from between and around the seats and keeps everything from blowing out of the jeep. They are very nice and super cheap
I don't feel like working on anything, at this time.