There are a number of reasons for choosing any of the platforms you mention. Let's look at each one and why you would/would not want to choose that suite.
Microsoft Office
The suite from the Microsoft Jagernaut. Need we say more? Yes. It provides lots of functionality and virtually seamless integration with thier backend suite of products. Most people are familiar with the products and training is easy to find. This suite's biggest advantages become apparent when you use the MicrosoftBack Office servers with them. If you opt for Microsoft Select or a similar licensing agreement you can cut cost.
Lotus/IBM SmartSuite
At one time formidable competition to MS's product, SmartSuite's popularity has declined over recent years. If you are using Lotus Notes for your back end this is the way to go. Integration with Lotus Notes is a nice addition to this product. Major issues were mentioned previously - slow upgrades, lack of support for the latest Microsoft formats, etc.Corel Office
Wordperfect. Well need we say more? At one time the largest word processing company in the word driven into the ground by poor foresight in the purchase of the company and a 'suite' of products and subsequently selling it off. Originally plagued with kludgy functionality between the products in the suite it's really started to come of age with the later releases. Strong cross integration with the Corel Graphics products is a nice touch. If your company is strong on graphics or forsees a move to Linux this may be the way to go. Keep in mind though that WordPerfect for Linux is actually Windows Code ported to Linux under WINE. It's not the fastest thing in the world but it does work.
Continued in next post --->