The planes are arranged by their Wing Cube Loading (WCL) value. The WCL value is an indicator as to how 'easy' a plane flies on a relative scale. The lower the WCL value, the easier the plane is to fly, especially for beginners to the hobby.

Note: The example types given relate to the 'flyability' or level of difficulty, not a specific venue. There are planes, because of there physical size and/or weight that should not be used at a certain venue that might be associated with the 'type'. The 'types' are very generalized and only indicate their ease of flying.
Level 1 is the easiest to fly and Level 7 the hardest and requires great skill.

In parentheses, the Level is followed by the Wing Cube Loading (WCL) Range and then a generalized 'type'
(Level 1 0.00 - 2.99) Indoor, aircraft speed and size determine the actual 'best' size venue
(Level 2 3.00 - 4.99) Backyard, large area with no obstacles
(Level 3 5.00 - 6.99) Park, large area with no obstacles or people doing other activities
(Level 4 7.00 - 9.99) Sport/Trainer, typical AMA club flying field
(Level 5 10.00 - 12.99) Advanced (Adv.) Sport, typical AMA club flying field
(Level 6 13 - 16.99) Expert Sport, typical AMA club flying field
(Level 7 17+) Expert, typical AMA flying club field

E-flite UMX Radian BNF with AS3X $89.99
Wingspan: 28.7"
Wing Area: ~93 sq.in.
Ready To Fly Weight: 1.5 oz.
Area Wing Loading: 2.32 oz./sq.ft.
Wing Cube Loading: 2.89 - WCL Level 1
Type: Micro/tractor/hand launch/glider-sailplane/BNF
Suitable Flying Area for Beginners: Large indoor venue, Outdoors: medium-size park with no obstacles & low winds for first flights

Total price with listed components: $241.89

Notes: How to turn the AS3X stabilization on and off for this plane.

FliteTest FT Explorer Kit $39
Plans & Plans Build Video
Wingspan: 57"
Wing Area: 460 sq.in.
Ready to fly Weight: 24.1 oz.
Wing Area Loading: 7.54 oz./sq.ft.
Wing Cube Loading: 4.22 - WCL Level 2
Type: "Park Flyer"/hand launch/pusher glider-sailplane/Scratch or Kit Build from Foam Board
Suitable Flying Area for Beginners: Outdoors: large-size park with no obstacles & low winds for first flights

Total price with listed components, not including adhesives and tools: $254.33 to 291.33

Notes: This is a glider-type plane, it requires a fairly long glide in area for landing.

hobbyzone Sport Cub S RTF with SAFE $129.99
Wingspan: 24.3"
Wing Area: ~84 sq.in.
Ready to Fly Weight: 2.0 oz.
Area Wing Loading: 2.72 oz./sq.ft.
Wing Cube Loading: 4.49 - WCL Level 2
Type: Micro/tractor/Rise of Ground (ROG) from 'packed dirt' or hand launch from grass/3-channel/RTF
Suitable Flying Area for Beginners: Indoors: medium-size venue, Outdoors: medium-size park with no obstacles & low winds for first flights

Total price with listed components: $219.90

Notes: How to turn the AS3X stabilization on and off for this plane.

Horizon Hobby HobbyZone Champ RTF $89.99
Wingspan: 20.3"
Wing Area: 62.6 sq.in.
Ready to Fly Weight: 1.3 oz.
Area Wing Loading: 3 oz./sq.ft.
Wing Cube Loading: 4.54 - WCL Level 2
Type: Micro/hand launch or firmly packed soil for Rise Off Ground (ROG)/tractor 3-channel/RTF
Suitable Flying Area for Beginners: Indoors: small to medium-size venue, Outdoors: small to medium-size park with no obstacles & low winds for first flights

Total price with listed components: $178.90

HobbyZone Champ S+ RTF $169.99
Wingspan: 27.3"
Wing Area: 114.5 sq.in.
Ready to Fly Weight: 3.7 oz.
Area Wing Loading: 4.65 oz./sq.ft.
Wing Cube Loading: 5.21 - WCL Level 2
Type: Small/hand launch or firmly packed soil for Rise Off Ground (ROG)/tractor 4-channel/RTF
Suitable Flying Area for Beginners: Indoors*: medium to large-size venue, Outdoors: small to medium-size park with no obstacles & low winds for first flights
*Note: Indoor flight requires the onboard GPS to be 'off'.

Total price with listed components: $287.92

Notes: This is a small plane, but it can handle some wind because of the AS3X stabilizing system. It has gotten mixed reviews on the Internet. It seems to work as described if ALL of the directions are followed. It is small enough, and slow enough, that it could be flown indoors if the venue is large enough.