Rahu/Ketu and Illusions!

There are way too many illusions with regard to Rahu/Ketu and respected authorities tend to disagree with regard to Rahu Ketu aspects, own house, Mool Trikona (office of responsibility) and exaltation/debilitation sign. Attached below is a compendium of the different view points which exist with the respect to Rahu and Ketu.

Rahu/Ketu Aspects:
A) No aspect (Shadow planet and hence said not to have aspect)
B) 5,7,9 (Most commonly held view)
C) 5,7,9,12 (Some believe it has 12th also)
D) 3,7,11 (Tamil scriptures especially)
E) 3,7,10 (Similar to Saturn's aspect)
Note : There are also some beliefs that Rahu alone aspects and Ketu does not aspect. Also since Rahu and Ketu are generally believed to be one and the same and always 180 degrees apart, 7th aspect is not considered.

Rahu/Ketu Own House:
A) Rahu Aquarius, Ketu Scorpio (Most popular view)
B) Rahu Virgo, Ketu Pisces (Supported by few texts)
C) Rahu Aquarius, Ketu Aries (Based on Saturn and Mars Mooltrikona placement)
D) Rahu Capricorn, Ketu Cancer (Apparently in few Tamil texts)
E) Rahu and Ketu both don't own any houses (Believed to be just nodal points and hence considered not to have any ownership)

Rahu/Ketu Mool Trikona Sign:
A) Rahu Virgo Ketu Pisces (Most popular view)
B) Rahu Gemini Ketu Sagittarius (Supported by a Parashara Hora version)
C) Rahu Aquarius Ketu Aries (Shanivat Rahu Kujavat Ketu hence follows similar to Saturn & Mars)
D) Rahu and Ketu both don't a Mool Trikona sign (This is based on the inference that they don't rule any of the signs in the zodiac)

Rahu/Ketu Exaltation and Debilitation:
A) Rahu Exalted in Taurus and Debilitated in Scorpio, Ketu Exalted in Scorpio and Debilitated in Taurus (Most popular view)
B) Rahu Exalted in Gemini and Debilitated in Sagittarius, Ketu Exalted in Sagittarius and Debilitated in Gemini (Another popular view supported especially in Jaimini)
C) Rahu Exalted in Virgo and Debilitated in Pisces, Ketu Exalted in Pisces and Debilitated in Virgo (Not very popular but believed as another view)
D) Rahu Exalted in Scorpio and Debilitated in Taurus, Ketu Exalted in Taurus and Debilitated in Scorpio (Not popular but this view is based on the headless theory as they are believed to exert full influence on the opposite house from which they are placed)
E) Rahu and Ketu both are Exalted in Scorpio (opposite of Moon exaltation sign Taurus) and both are Debilitated in Taurus (Moon exaltation sign)
F) Rahu and Ketu both don't have exaltation and debilitation signs. Result depends on their despositors.