The answers you'll receive are going to be largely subjective. I can't tell you which option would be best for you, but there are plenty of things to consider.
Do you know how to sell a home? If your market is hot enough, FSBO may make sense as you won't need the marketing power and expertise of an agent. In very hot markets, you'll end up with potential bidding wars if you price your house correctly. But that's where things start getting tricky. Do you know what your house is realistically worth in your market, or are you making assumptions based on Zillow (or similar)? Do you know what paper work is needed to complete a FSBO sale? Are you any good at negotiating? There are certainly plenty of resources out there for FSBO sellers to learn how to do it, but it can be overwhelming.
FSBO isn't really fee free. If the buyer has an agent, they'll want a percentage (3%) for setting up their part of the sale. Without experience in negotiation, you may be leaving a decent amount of money on the table. Also, in negotiations, an experienced agent may nickel & dime you with contingencies all the way up until closing. Then there's anything you might need to pay for marketing materials and time off from work (if needed) to have the house shown. However, if you're in a market where people are literally walking up to your door to ask if you'd consider selling and for how much (which just happened to a friend of mine), then it might actually be a pretty painless process.
Traditional agents charge a fee, but that fee goes towards marketing and their experience in sales and negotiations. They do the work of getting your property in front of the right people and setting up house showings. The work is done on your behalf, and you won't need to alter your personal work schedule anywhere near as much as you would with FSBO. They only get paid if the house sells.
Limited service agents are a bit of an unknown to me, but it's more than likely the buyer will have an agent, so assume the higher fee. It also appears that the LSA gets paid at least $500 no matter what happens, so they're certainly not putting in any extra effort to help get your house sold. It appears that you're simply paying to get on their list of homes and get some marketing from them, but that's about it. I'd imagine you could get the same exposure as a well educated FSBO seller.