(If you have a lot of money to spend) Price - £160 -http://www.amazon.co.uk/Sony-Vegas-Pro-12-Academic/dp/B009MO2OMC/ref=sr_1_sc_1?s=software&ie=UTF8&qid=1399895851&sr=1-1-spell&keywords=son+vegas+pro+12
Sony Vegas -
Pros-
Its an advanced video editing software to create high quality videos. You can not only edit videos with text but you can add multiple layers, tones of effects, PIP (picture in picture) If your using webcam, User Friendly, 1080P Video outcomes when using the right settings, Unlimited editing time, Simple to use,You Can also use a greenscreen and make more crazy videos like epic rapbattles where they change the backgrounds and have multiple things going on. There are a lot of editing tools and supports almost ALL video formats.
Cons -
Costs a lot of money
Can sometimes crash/ take a long time to render videos, (i mean hours)
(If your on a budget or want a cheap editor) FREE!
Windows Movie maker -
Pros -
windows movie maker is really simplistic, it has an easy to use interface. It comes with all windows machines, if you dont have it on your machine you can re-download it of Microsofts webpage. You can make crisp 720p videos and im sure with newer versions it allows you to go higher.
http://windows.microsoft.com/en-GB/windows/get-movie-maker-download
Cons-
Don't support many video formats
Not much editing tools
There are more, one i like to use is "Camtasia Studio" Its cheaper than Sony Vegas but does not come with as many editing options, heres the link if you want to check that out -
http://www.techsmith.com/camtasia.html
Hope i helped a little!