Text rendering methods comparison or GDI vs. GDI+ revised

In this post, hopefully the last on this subject1, I'm going to compare the different text rending methods available for Windows .NET application for standard resolution devices2.
 
I decided to revise my original findings (see: The wonders of text rendering and GDI) and do a comprehensive comparison for three reasons:

  1. In response to my earlier post (see: GDI text rendering to image ) Kris commented he uses GraphicsPath for text rendering to image to achieve better visual quality than standard GDI+ text rendering.
  2. My latest "revelation" (see: Blurry/Fuzzy GDI+ Text Rendering using anti-alias and floating-point Y coördinates ) on improving GDI+ text rendering visual quality.
  3. GDI+ typographic StringFormat can offer good text measurement for custom text layout.

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The wonders of text rendering and GDI

My research into text rendering in .NET/Windows started with HTML Renderer, I have noticed text issues in the rendered HTML: fonts were pixelated, letter were too close, words were either too close or too far apart (Figure 1). Although minor issues they were bugging me, also I was hoping it will lead to some performance improvements as from my last optimization session text draw/measure were the most time consuming operations.
The resulted improvement exceeded my wildest expectations and worth a post on.
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Optimizing images usage in .NET – part 1

Using image is an integral part of GUI application but I have found very little resources on it's resource consumption and how I can optimize it. The goal of this post is exactly that, in part 1 I will show the performance impact and in part 2 I will propose an optimization.
I'm going to consider only the memory usage as CPU performance is generally insignificant.
 
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