TiddlyWiki vs. MoinMoin vs. MediaWiki vs. Foswiki

WikiWord (CamelCase)
[[link]]
[[label|link]]

CamelCaseLink or [[free link]]

[[target|label|params]]

[[a link]]
[[a link|with title]]

WikiWord autolink
Otherweb.WikiWord
[[Spaced text]]
[[WikiWord][label]]

http://www.example.com
[[label|http://www.example.com]]

http://google.de/ or
[[http://google.de/ | Google]] or
file://///server/share/file

[http://example.org The title]

External Link
http://foswiki.org/ autolink
[[http://foswiki.org/][label]]

! Level 1
!! Level 2
!!! Level 3
!!!! Level 4
!!!!! Level 5

= Level 1 =
== Level 2 ==
=== Level 3 ===
==== Level 4 ====
===== Level 5 =====

==Section==
===Subsection===
====Sub-subsection====

---+ Level 1
---++ Level 2
---+++ Level 3
---++++ Level 4
---+++++ Level 5
---++++++ Level 6

''bold''

'''bold'''
'''strong emphasised'''

'''bold'''

*bold*

//italic//

''italic''
''emphasised''

''italic''

_italic_

__underline__

__underline__

<u>underlined</u>

<u>underline</u>

{{{monospaced}}}

`monospaced`

<tt>monospace</tt>

=monospaced text= and
<verbatim>
multi line text
</verbatim>

--strikethrough--

--(strikethrough)--

<s>strikethrough</s>

<strike>strikethrough</strike>

^^superscript^^

^superscript^

<sup>superscript</sup>

<sup>superscript</sup>

~~subscript~~

,,subscript,,

<sub>subscript</sub>

<sub>subscript</sub>

[img[local.jpg]]
[img[http://foo.bar/foo.jpg]]

{{http://foo.bar/foo.jpg}}
{{attachment:foo.jpg | alt text}}
{{target|alt|params}}

[[Image:wiki.png]]

%ATTACHURL%/image.png
http://any.domain/image.png
%IMAGE{"image.png"}%

using custom classes, e.g.
{{right{
text
}}}

only in tables:
||<(> left ||<:> middle ||<)> right ||

<center>Centered</center>

| left |   center   |   right |
or HTML
or CSS

:indent

> quote

<<<
blockquote
<<<

indented text

: indented line

<blockquote>
multi line text
</blockquote>

* Item 1
** Item 1.1
* Item 2

* Item 1
* Item 1.1
* Item 2

* Item 1
** Item 1.2
* Item 2

* Item 1
* Item 1.1
* Item 2

# Item 1
## Item 1.1
# Item 2

1. Item 1
a. Item 1.a
1. Item 2

# Item 1
## Item 1.2
# Item 2

1. Item 1
a. Item 1.a
1. Item 2

; term
: description

term:: definition

; term : definition

$ Term: Definition

----

----
-----
------

----

---