I'm not familiar with the Dover edition, but if it has all the original illustrations, then it gets a nod.  The edition that is part of the Oxford Mark Twain reprints the first edition, and the illustrations are some of the most interesting in all of Twain's work.  Someone with more experience can explain the advances in print technology that made these sophisticated images possible. 

--LH
________________________________________
From: Mark Twain Forum [[log in to unmask]] On Behalf Of Stephen F. Railton [[log in to unmask]]
Sent: Thursday, August 26, 2010 5:59 AM
To: [log in to unmask]
Subject: Re: Best edition for Following the Equator

Dover has a good paperback edition, with all the original illustrations.
 (ISBN-10: 0486261131)
Steve Railton

On Wed, 25 Aug 2010 14:01:55 +0000
  "Click, Benjamin A" <[log in to unmask]> wrote:
> Dear Forum members,
>
> The recent question about the most comprehensive edition of HF prompts me
>t=
> o ask you the same about Following the Equator.  Any and all
>suggestions/co=
> mments are welcome.
>
> Cheers,
>
> Ben