What size is your business? You could also consider TaxSlayer (http://www.taxslayerbooks.com/) and Intuit (http://accountants.intuit.com/payroll-payments/payroll-for-accountants/online-payroll-for-accountants/).
"Best" depends on what you need it to do. What's the size of your company, what's your budget, what functionality are you looking for, do you want a cloud-based or on-premise solution? The SMB market is dominated by Zoho, Nimble, SugarCRM and various other solutions. From there, you can scale ...
Here's an article on the top 5 POS software solutions compared.
Are you referring to the reports on this site, or to accounting solutions in general; meaning, what features are essential in an accounting solution?
Well, there's always SAP as well if you're looking for a robust (but potentially very expensive) solution with a large customer base. http://www.sap.com/solutions/bp/customer-relationship-management/index.epx
You could take a look at Microsoft Dynamics NAV: http://www.microsoft.com/en-us/dynamics/erp-nav-overview.aspx
What exactly do you mean by "user names"? AcctVantage has various customer testimonials listed on their site: http://acctvantage.com/erp-case-studies/#.UN3wTm_AcgQ
In addition to the bigger names Mark mentioned, you should also check out Workday, a cloud-based ERP provider that has been making quite a name for itself. http://www.workday.com/
MS Dynamics GP as a restaurant module. You could also try Cenium (http://www.cenium.com/restaurant.html) though I haven't used them myself.
My guess is you're looking for an SMB-type solution installed on-premise? SAP BusinessOne might be an option: http://www54.sap.com/solutions/sme/software/erp/small-business-management/overview/index.html
Have you tried Xero? They're worth a look: very user-friendly and aesthetically pleasing.
MS Dynamics offers various language packs, including Persian: http://microsoft-dynamics-crm-persian-language.software.informer.com/
QuickBooks indeed, but also MS Dynamics, Epicor, CitiXsys off the top of my head.
A popular choice for the self-employed would be the Intuit route: http://www.intuit.com/.
Yes, I've built several websites with WordPress. It's free and highly customizable. Creating a basic website doesn't take too long, and then you can add all the bells and whistles you need.
Here's a pretty in-depth MS Dynamics AX product profile including screenshots and a list of features.
Xero is a cloud-based accounting solution, so you shouldn't be experiencing any memory issues, plus they have payroll add-ons - check them out here: http://www.xero.com/add-ons/
Depends on what you use it for. Kofax is just a scanning/OCR solution that ties into Markview for further processing, but Markview is not originally a Kofax product (Kofax bought 170 Systems) plus it was originally developed as an Oracle-based solution (which is not ideal if you're a non-Oracle shop). ...
Kathy, start by listing out your requirements: what functionality are you looking for? What other systems will the accounting software interface with? How many people will be using it? What is your roll-out time frame? What is your budget? Who will be supporting the software? Are you looking for something ...
Try Xero if you're open to trying a cloud-based solution. I would say it's the best competitor out there, next to Sage Peachtree.