Which Accounting software is the best for: A). For small size company B). For Medium size company C). For large size company

Peach Tree and Telly for small and medium size companies and for sure SAP is the Best software for Large size entities

Tally for small.

Oracle based for medium and large sized.

All

For Small Size Company people should go for Tally, for Medium size Oracle and for Big size company go for SAP.

It depend on the company businees volum , but for small size, Tally, for Medium one Accpac & Oracle and for Corporate group of businees SAP.

Oracel for small and mid size companies and SAP for big size companies 

By reviewing all the answers this is now cleared that following softwares are best for:

Small Size Company : Peachtree, Sage, Al Amin SYS

Medium Size Company: Oracle

 large size company : SAPPlease correct me if you think it should be little more improved.

Thanks to ALL for answering my question

A. Tally

B. Focus/Peachtree

C. Oracl

A ) al Amin SYS 

B) GP 

C) SAP

Really i can't answer , beacuse you didn't mention any thing about the company budget for buying any ERP and the stuff and the need of it as well, but i will try to help you that First is Oracl / SAP / Axapta / GreatPlains / and the rest come

To the best of my knowledge, PeachTree seems to be the best